One of the most intense midterm election campaigns in recent memory is growing even more vicious in the aftermath of a partisan brawl over Supreme Court Justice Brett Kavanaugh Brett Michael KavanaughHarris faces pivotal moment with Supreme Court battle Poll: 59 percent think president elected in November should name next Supreme Court justice Feinstein 'surprised and taken aback' by suggestion she's not up for Supreme Court fight MORE that deeply angered conservatives and liberals alike.

Both parties are seizing on the issue, with Republicans in close Senate races going on the attack in red states against Sens. Claire McCaskill Claire Conner McCaskillMomentum growing among Republicans for Supreme Court vote before Election Day Democratic-linked group runs ads in Kansas GOP Senate primary Trump mocked for low attendance at rally MORE (D-Mo.), Heidi Heitkamp Mary (Heidi) Kathryn HeitkampHarris faces pivotal moment with Supreme Court battle Centrists, progressives rally around Harris pick for VP 70 former senators propose bipartisan caucus for incumbents MORE (D-N.D.), Joe Donnelly Joseph (Joe) Simon DonnellyHarris faces pivotal moment with Supreme Court battle 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-Ind.) and Jon Tester Jonathan (Jon) TesterDemocrats shoot down talk of expanding Supreme Court Pence seeks to boost Daines in critical Montana Senate race This World Suicide Prevention Day, let's recommit to protecting the lives of our veterans MORE (D-Mont.), four of the 10 Democrats defending seats in states that President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE won in 2016.

Liberals are furious that Kavanaugh, a potentially pivotal vote on abortion rights and other issues, was confirmed despite what they view as credible accusations of sexual assault against him, which he has denied. Democratic candidates for the House believe the issue will help attract the votes of suburban women already moving in their direction.

ADVERTISEMENT

The trend toward a more polarized political landscape has been a long time coming, said Michael Steel, a former adviser to former Speaker John Boehner John Andrew BoehnerLongtime House parliamentarian to step down Five things we learned from this year's primaries Bad blood between Pelosi, Meadows complicates coronavirus talks MORE (R-Ohio), noting that the divisions have been driven by demographic shifts, social changes and rapidly developing technology.

But he noted that Trump has exacerbated that increasingly partisan dynamic since the 2016 election. Trump stunned the political world by winning the White House despite a number of controversial incidents, including the leak of the “Access Hollywood” tape that led many in his own party to denounce him at the time.

“The polarization is real. It’s a big historic trend, and President Trump is both a symptom and a cause,” Steel told The Hill, saying he believes the prospect of a Democratic-controlled Congress will drive Republicans to the polls in November.

The Kavanaugh fight has amplified those divisions in the midst of a campaign already characterized by sharp rhetoric and candidates looking to turn out their respective bases.

In the Senate, where Republicans are looking to defend and build on their 51-49 majority, the Supreme Court has become the centerpiece of Missouri Attorney General Josh Hawley’s Senate campaign as he looks to unseat McCaskill, who voted against Kavanaugh’s nomination.

Hawley expressed support for Kavanaugh as soon as the judge was nominated by Trump, and he recently doubled down on his messaging, blaming Democrats for what he described as a “circus” surrounding the confirmation process.

After Kavanaugh’s confirmation, the Republican is now warning voters about the ramifications of a Democratic Senate majority.

“The goal of a Democrat majority is to overturn the results of the 2016 election and roll back the results of the Trump Administration,” Hawley said in a statement following a Monday conference call with reporters.

Hawley has called on McCaskill to put “partisanship aside” on this issue and support actions like his request for a special counsel to investigate Democrats’ handling of the allegations. But McCaskill accused Hawley of being the one who’s elevating partisanship in politics.

“This is what a partisan does, and what causes the problem in the first place,” McCaskill said in a recent statement.

Kavanaugh’s confirmation has also become a major flashpoint in other red states. In Indiana’s Senate debate Monday night, the Supreme Court quickly grabbed the spotlight, exposing one of the biggest differences between Donnelly, who opposed Kavanaugh, and Republican Mike Braun.

And Montana state auditor Matt Rosendale, who’s challenging Tester, is running ads against Democratic senators for the “liberal smear” against Kavanaugh.

But the Supreme Court rift could perhaps have the largest ripple effect in North Dakota, where Heitkamp is defending a seat in a state Trump carried by 36 points.

Her Republican opponent, Rep. Kevin Cramer Kevin John CramerMomentum growing among Republicans for Supreme Court vote before Election Day On Paycheck Protection Program, streamlined forgiveness is key McConnell shores up GOP support for coronavirus package MORE, has gone on the attack over her decision to vote against Kavanaugh’s confirmation, positioning himself as a staunch defender of the judge.

In a weekend interview with The New York Times, Cramer called into question the “Me Too” movement, saying it was a “movement toward victimization” and lamenting that “you’re just supposed to believe” women and men who come forward with allegations of sexual misconduct.

Heitkamp responded to Cramer’s remarks, bristling at his suggestion that the movement turned otherwise strong women into victims. She said her own mother had been a victim of sexual assault as a teenager.

“I want you to put this in there, it did not make my mom less strong that she was a victim,” she said. “She got stronger and she made us strong. And to suggest that this movement doesn’t make women strong and stronger is really unfortunate.”

While Kavanaugh is upending deep-red Senate races, Democrats believe it’ll resonate differently in the battle for the House, where party candidates intend to channel the fury over the justice’s confirmation as they look to flip the 23 seats they need to take the chamber in November.

Demonstrators — many who are women — have held several protests that have seized on the growing anti-Kavanaugh furor, which they see as an extension of the Me Too movement.

For Democrats, the path to the House runs directly through suburban districts where moderate and female voters may be turned off by the allegations against Kavanaugh and how some Republicans have dismissed the Me Too movement.

After the confirmation, pro-abortion rights group NARAL launched a $1 million ad campaign hitting vulnerable House Republicans on the issue, including GOP Reps. David Young David Edmund YoungEric Idle threatens to sue GOP committee over use of Monty Python song in ad Trump: DeJoy should be removed if it 'can be proven that he did something wrong' The Hill's 12:30 Report - Presented by Facebook - Trump's Labor Day news conference MORE (Iowa), Peter Roskam Peter James RoskamBottom line Lobbying world House votes to temporarily repeal Trump SALT deduction cap MORE (Ill.), Kevin Yoder Kevin Wayne YoderBottom line Amanda Adkins wins GOP primary to challenge Rep. Sharice Davids Sharice Davids to vote for Trump impeachment articles: 'The facts are uncontested' MORE (Kan.), Claudia Tenney (N.Y.), John Culberson John Abney Culberson2020 Democratic Party platform endorses Trump's NASA moon program Bottom line Ex-Rep. Frelinghuysen joins law and lobby firm MORE (Texas), Jason Lewis Jason Mark LewisThe Hill's Campaign Report: Trump and Biden vie for Minnesota | Early voting begins in four states | Blue state GOP governors back Susan Collins GOP Senate candidate says Trump, Republicans will surprise in Minnesota Tina Smith wins Democratic Senate primary in Minnesota MORE (Minn.) and Dave Brat (Va.) — all running in the types of suburban seats Democrats are focusing on.

The rhetoric over Kavanaugh landed in the midst of a midterm election cycle already defined by rampant partisanship.

An August survey from Pew Research Center found that about 8 in 10 respondents believe that Democratic and Republican voters not only disagree on plans and policies but also on basic facts. And a Pew poll released late last month found that 72 percent of polled registered voters say the issue of which party controls Congress will factor into their vote in November.

During the primary season, both parties nominated a handful of populists from opposite ends of the political spectrum, suggesting an appetite for more ideologically aggressive candidates among the parties’ core voters.

In the gubernatorial races in Florida and Georgia, Democrats nominated two insurgent progressives, Andrew Gillum and Stacey Abrams, while Republicans tapped former Rep. Ron DeSantis Ron DeSantisFlorida attorney general scrutinizing Bloomberg paying fines for felons to vote Trump may meet with potential Supreme Court pick in Miami Florida governor unveils legislation targeting protesters in 'violent or disorderly' demonstrations MORE (R-Fla.) and Georgia Secretary of State Brian Kemp, two hard-line conservatives who have allied themselves closely with Trump.

That same dynamic played out in governor’s races in Kansas and Maryland.

This partisanship has played a role in general election messaging. Candidates are still tailoring their messages to rile up the base, which they believe will ultimately deliver them crucial victories in midterms where turnout is usually lower.

In Arizona’s Senate race, Rep. Martha McSally Martha Elizabeth McSallyThe Hill's Campaign Report: Presidential polls tighten weeks out from Election Day Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' New ABC/WaPost poll finds Trump edging Biden in Arizona, Florida MORE (R) has sought to frame her campaign around issues such as crime and immigration, warning voters that both are likely to surge if Democrats win in November. The same goes for Arizona Gov. Doug Ducey (R), who is seeking a second term.

Sen. Ted Cruz Rafael (Ted) Edward CruzCruz blocks amended resolution honoring Ginsburg over language about her dying wish Trump argues full Supreme Court needed to settle potential election disputes Press: Notorious RBG vs Notorious GOP MORE (R-Texas), a standard-bearer in the conservative movement, has seized on issues such as shootings involving police and national anthem protests in the NFL as he seeks to beat back a tough challenge from Rep. Beto O’Rourke (D-Texas).

Meanwhile, Trump, who still elicits sharp divisions among voters, is hardly holding back.

The president planned a series of rallies in the final four weeks of the midterm campaign, where he is expected to double down on his message that voting for Democrats in November is not an option.

As he’s stumped for various GOP candidates this year, he’s made the pitch to elect more Republicans that will enact his agenda, arguing that red-state Democrats who frame themselves as bipartisan won’t actually work across the aisle.

Strategists from both parties say the attack line that Democrats have adopted a radical agenda dead set on obstructing Trump is likely to be touted by more Republicans heading into Election Day.

But Democrats are poised to take the opposite approach, casting Kavanaugh’s confirmation as an affront on female voters and women’s rights.

“The Republicans may have saved themselves the Senate; the Kavanaugh fight did activate the GOP base,” said Democratic strategist Brad Bannon. “The question in the next 28 days is, now that [the confirmation] settles in, is that going to give another jolt to the Democratic base in the same way the fight jolted the GOP base?”