Former Trump Campaign Manager Corey Lewandowski Corey R. LewandowskiTrump faces tricky choice on Supreme Court pick How Trump can win reelection: Focus on Democrats, not himself Trump Jr. distances from Bannon group, says he attended 'single' event MORE expressed confidence he could unseat Sen. Jeanne Shaheen Cynthia (Jeanne) Jeanne ShaheenSenate Democrats introduce bill to sanction Russians over Taliban bounties Trump-backed candidate wins NH GOP Senate primary to take on Shaheen Democratic senator urges Trump to respond to Russian aggression MORE (D-N.H.) if he decides to challenge her in New Hampshire’s Senate race next year.

“We’re going to think about it. But if I get into this race I’m going to win, and I’m going to beat Jeanne Shaheen, who voted against Gorsuch. She voted against Kavanaugh. She voted to continue to fund sanctuary cities,” Lewandowski said on John Catsimatidis’ radio show Sunday, referring to Supreme Court Justices Neil Gorsuch Neil GorsuchTrump plans to pick Amy Coney Barrett to replace Ginsburg on court Abortion stirs GOP tensions in Supreme Court fight Poll: 59 percent think president elected in November should name next Supreme Court justice MORE and Brett Kavanaugh Brett Michael KavanaughTrump plans to pick Amy Coney Barrett to replace Ginsburg on court Collins trails challenger by 4 points in Maine Senate race: poll SCOTUS confirmation in the last month of a close election? Ugly MORE, both of whom President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE nominated.

ADVERTISEMENT

“Those are not the values of the people of New Hampshire. So if I get into this race I think I can beat her.”

Lewandowski, a conservative firebrand who has maintained a close relationship with President Trump despite being fired from the campaign in June 2016, told The Hill earlier this month that he’s “seriously considering” a Senate run and casted Shaheen as a “failed” senator.

“Jeannie Shaheen has failed the people of NH by voting in lock step with Chuck Schumer Chuck SchumerPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' 3 reasons why Biden is misreading the politics of court packing Cruz blocks amended resolution honoring Ginsburg over language about her dying wish MORE and Nancy Pelosi Nancy PelosiDemocratic senator to party: 'A little message discipline wouldn't kill us' Overnight Health Care: New wave of COVID-19 cases builds in US | Florida to lift all coronavirus restrictions on restaurants, bars | Trump stirs questions with 0 drug coupon plan Overnight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds MORE,” Lewandowski told The Hill. “The people of NH deserve better. If I run, I would be a voice for all the people of NH.”

The Granite State is set to be a key White House and Senate battleground in 2020. Trump narrowly lost New Hampshire in 2016 to Hillary Clinton Hillary Diane Rodham ClintonBloomberg rolls out M ad buy to boost Biden in Florida Hillicon Valley: Productivity, fatigue, cybersecurity emerge as top concerns amid pandemic | Facebook critics launch alternative oversight board | Google to temporarily bar election ads after polls close Trump pledges to make Juneteenth a federal holiday, designate KKK a terrorist group in pitch to Black voters MORE, and Shaheen, the state’s first female governor and then senator, received roughly 51 percent of the vote in both 2008 and 2014.

Lewandowski slammed Shaheen Sunday, suggesting she’s been using her office to boost her personal finances.

“Jeanne Shaheen has been an elective office in New Hampshire for over 20 years and now she is exceptionally wealthy,” he said. “I think it’s time to hold these people accountable. They go win poor and they come out very rich. They think that it’s a job that they’re entitled to, and that they can keep for the rest of their lives.”

Lewandowski has already received the strong endorsement of Trump, who said at a rally in New Hampshire this week that he would be a “fantastic” senator.

--This report was updated on Aug. 18 at 8:53 a.m.