A conservative group backed by mega-donor Charles Koch will launch digital ads on Tuesday pressuring Republican and Democratic lawmakers in both chambers to support legislation limiting President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE’s authority to impose new tariffs.

Americans for Prosperity will run digital ads targeting 22 senators and 12 House members from both parties, urging them to support the Bicameral Congressional Trade Authority Act, which would require congressional approval for increasing tariffs or levying new ones.

In addition to the pressure campaign, Americans for Prosperity will run ads thanking the Republicans and Democrats who already support the bill. The Bicameral Congressional Trade Authority Act is sponsored by nearly a dozen senators and 19 House members.

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“Tariffs are destructive taxes on American producers and consumers. They threaten to undermine the economic growth the Trump administration has encouraged through tax reform and removing regulatory burdens,” said Americans for Prosperity President Tim Phillips.

“Congress should hold an up-or-down vote before tariffs proposed by a president can take effect … We strongly encourage these senators and representatives to get on board and cosponsor this bipartisan legislation. This is a top trade priority for our organization and we’ll continue to press Congress to make it a reality.”

Americans for Prosperity has traditionally supported Republican candidates, but they’ve become frustrated with Trump and some GOP lawmakers over policies they view as anathema to conservative free-market principles.

The Koch network’s political arm, which spent about $400 million on politics and policy in the past election cycle, refused to support some GOP candidates in 2018 and targeted others for supporting a massive spending package or refusing to vote for spending clawbacks.

Trump’s trade war with China has been a major source of frustration for the group.

Earlier this year, Americans for Prosperity sent a letter to Speaker Nancy Pelosi Nancy PelosiPelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare House lawmakers reach deal to avert shutdown Centrist Democrats 'strongly considering' discharge petition on GOP PPP bill MORE (D-Calif.) offering to work with her to limit the president’s authority to impose new tariffs.

“Granting presidents authority to negotiate free trade agreements has helped lower barriers to trade and improve the lives of millions of Americans,” the letter said. “But Congress has ceded to the executive branch too much unilateral authority to impose tariffs … We encourage you to review and support this important legislation.”

Trump has described himself as a “Tariff Man” and slapped billions of dollars of new tariffs on Chinese goods in an effort to gain leverage in his negotiations for a trade deal with China. China has responded with its own retaliatory duties on U.S.-made products.

There is optimism that the U.S. and China will reach a new trade agreement sometime later this month ahead of a potential summit between Trump and Chinese President Xi Jinping. An agreement could result in the U.S. lifting billions of dollars worth of tariffs on Chinese goods.

The ads asking lawmakers to support the Bicameral Congressional Trade Authority Act will target Sens. Michael Bennet Michael Farrand BennetOVERNIGHT ENERGY: House Democrats tee up vote on climate-focused energy bill next week | EPA reappoints controversial leader to air quality advisory committee | Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' Senate Democrats demand White House fire controversial head of public lands agency Next crisis, keep people working and give them raises MORE (D-Colo.), Maria Cantwell (D-Wash.), Ben Cardin Benjamin (Ben) Louis CardinCongress must finish work on popular conservation bill before time runs out PPP application window closes after coronavirus talks deadlock Congress eyes tighter restrictions on next round of small business help MORE (D-Md.), Tom Carper Thomas (Tom) Richard CarperDemocrat asks for probe of EPA's use of politically appointed lawyers Overnight Energy: Study links coronavirus mortality to air pollution exposure | Low-income, minority households pay more for utilities: report OVERNIGHT ENERGY: Democrats push resolution to battle climate change, sluggish economy and racial injustice | Senators reach compromise on greenhouse gas amendment stalling energy bill | Trump courts Florida voters with offshore drilling moratorium MORE (D-Del.), Bob Casey Robert (Bob) Patrick CaseySecond GOP senator to quarantine after exposure to coronavirus GAO report finds brokers offered false info on coverage for pre-existing conditions Catholic group launches .7M campaign against Biden targeting swing-state voters MORE Jr. (D-Pa.), Bill Cassidy (R-La.), Catherine Cortez Masto (D-Nev.), Mike Crapo (R-Idaho), Ted Cruz Rafael (Ted) Edward CruzTrump argues full Supreme Court needed to settle potential election disputes Press: Notorious RBG vs Notorious GOP The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy MORE (R-Texas), Steve Daines (R-Mont.), Mike Enzi Michael (Mike) Bradley EnziChamber of Commerce endorses McSally for reelection Cynthia Lummis wins GOP Senate primary in Wyoming The Hill's Convention Report: Democrats gear up for Day Two of convention MORE (R-Wyo.), Chuck Grassley (R-Iowa), Johnny Isakson Johnny IsaksonLoeffler paints herself as 'more conservative than Attila the Hun' in new campaign ad Georgia GOP Senate candidates cite abortion in pushing Ginsburg replacement Loeffler: Trump 'has every right' to fill Ginsburg vacancy before election MORE (R-Ga.), Tim Kaine Timothy (Tim) Michael KaineButtigieg stands in as Pence for Harris's debate practice Trump meets with potential Supreme Court pick Amy Coney Barrett at White House Names to watch as Trump picks Ginsburg replacement on Supreme Court MORE (D-Va.), Bob Menendez Robert (Bob) MenendezKasie Hunt to host lead-in show for MSNBC's 'Morning Joe' Senators ask for removal of tariffs on EU food, wine, spirits: report VOA visa decision could hobble Venezuela coverage MORE (D-N.J.), Pat Roberts (R- Kan.), Tim Scott (R-S.C.), Debbie Stabenow (D-Mich.), Dan Sullivan Daniel Scott SullivanWill Republicans' rank hypocrisy hinder their rush to replace Ginsburg? Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Republican Senators raise concerns over Oracle-TikTok deal MORE (R-Alaska), John Thune (R-S.D.), Chris Van Hollen Christopher (Chris) Van HollenCongress must finish work on popular conservation bill before time runs out Democrats fear Russia interference could spoil bid to retake Senate Mid-Atlantic states sue EPA over Chesapeake Bay pollution MORE (D-Md.) and Roger Wicker Roger Frederick WickerBottom line Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Shakespeare Theatre Company goes virtual for 'Will on the Hill...or Won't They?' MORE (R-Miss.).

In the House, Americans for Prosperity is asking for support from Reps. Vern Buchanan Vernon Gale BuchananMORE (R-Fla.), Danny K. Davis (D-Ill.), Suzan DelBene Suzan Kay DelBeneDemocrats say affordable housing would be a top priority in a Biden administration On The Money: McConnell not certain about fifth coronavirus package | States expected to roll out unemployment boost in late August | Navarro blasts 'stupid' Kodak execs On The Money: Economists flabbergasted after Congress leaves with no deal | Markets rise as the economy struggles | Retail sales slow in July MORE (D-Wash.), Brian Higgins Brian HigginsBiden slams Trump for promoting conspiracy theory about man shoved by police Trump claims 75-year-old man shoved by Buffalo police could be part of 'set up' NY, NJ lawmakers call for more aid to help fight coronavirus MORE (D-N.Y.), George Holding George Edward Bell HoldingGOP lawmaker says US-UK negotiators working 'fast and furious' on trade deal Hispanic Caucus campaign arm endorses slate of non-Hispanic candidates Whiskey, workers and friends caught in the trade dispute crossfire MORE (R-N.C.), Dale Kildee (D-Mich.), Kenny Marchant Kenny Ewell MarchantHouse Ethics panel recommends ,000 fine for Rep. Schweikert's campaign finance violations Candace Valenzuela wins Texas runoff to replace retiring Rep. Marchant Ethics Committee reviewing Rep. Sanford Bishop's campaign spending MORE (R-Texas), Stephanie Murphy Stephanie MurphyDemocrats scramble on COVID-19 relief amid division, Trump surprise Bank lobbying group launches ad backing Collins reelection bid House Democrats call on State Department for information on Uighur prisoner Ekpar Asat MORE (D-Fla.), Devin Nunes Devin Gerald NunesSunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Sunday shows preview: With less than two months to go, race for the White House heats up Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington MORE (R-Calif.), Bill Pascrell William (Bill) James PascrellRep. Bill Pascrell named chair of House oversight panel Trump says people 'in the dark shadows' are controlling Biden Democrats tear into Trump's 'deep state' tweet: His 'lies and recklessness' have 'killed people' MORE (D-N.J.), Tom Rice Hugh (Tom) Thompson RiceRep. Dan Meuser tests positive for COVID-19 Watchdog calls for probe into Gohmert 'disregarding public health guidance' on COVID-19 Massie plans to donate plasma after testing positive for COVID-19 antibodies MORE (R-S.C.), Dave Schweikert (R-Ariz.) and Jason Smith Jason Thomas SmithLongtime House parliamentarian to step down Pass the Primary Care Enhancement Act Trump coronavirus briefings put health officials in bind MORE (R-Mo.).

Americans for Prosperity is also running ads thanking Sens. Pat Toomey Patrick (Pat) Joseph ToomeyAppeals court rules NSA's bulk phone data collection illegal Dunford withdraws from consideration to chair coronavirus oversight panel GOP senators push for quick, partial reopening of economy MORE (R-Pa.), Mark Warner Mark Robert WarnerIntelligence chief says Congress will get some in-person election security briefings Overnight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House approves bill to secure internet-connected federal devices against cyber threats MORE (D-Va.), Maggie Hassan Margaret (Maggie) HassanDemocrats step up hardball tactics as Supreme Court fight heats up Congress needs to prioritize government digital service delivery Senate Democrats demand answers on migrant child trafficking during pandemic MORE (D-N.H.) and Ben Sasse Benjamin (Ben) Eric SasseGovernment watchdog recommends creation of White House cyber director position Chamber of Commerce endorses McSally for reelection Ben Sasse is mistaken with idea for the election of senators in America MORE (R-Neb.), as well as Reps. Mike Gallagher Michael (Mike) John GallagherGovernment watchdog recommends creation of White House cyber director position Hillicon Valley: 'Fortnite' owner sues Apple after game is removed from App Store | Federal agencies seize, dismantle cryptocurrency campaigns of major terrorist organizations Lawmakers introduce bill designating billion to secure state and local IT systems MORE (R-Wis.), Ron Kind Ronald (Ron) James KindWisconsin Rep. Ron Kind wins primary Democrats exit briefing saying they fear elections under foreign threat Bottom line MORE (D-Wis.), Jimmy Panetta James Varni PanettaOn The Money: McConnell previews GOP coronavirus bill | Senate panel advances Trump Fed nominee who recently supported gold standard | Economists warn about scaled-back unemployment benefits Bipartisan bill introduced to provide tax credit to food and beverage distributors Overnight Defense: US formally rejects Beijing's South China Sea claims | House set to consider defense policy bill next week | 57 injured as firefighters battle warship blaze MORE (D-Calif.) and Darin LaHood Darin McKay LaHoodAmerica can't afford to ignore the food service distribution industry On The Money: McConnell previews GOP coronavirus bill | Senate panel advances Trump Fed nominee who recently supported gold standard | Economists warn about scaled-back unemployment benefits Bipartisan bill introduced to provide tax credit to food and beverage distributors MORE (R-Ill.) for supporting the bill.