Sen. Claire McCaskill, D-Mo., agreed with her challenger’s campaign manager in a response to a swastika being spray-painted on a campaign sign for Missouri Attorney General Josh Hawley, who is going up against McCaskill next month.

“I agree. Disgusting,” McCaskill said as she retweeted Hawley’s campaign manager, Kyle Plotkin.

Hawley tweeted an image of the graffiti Wednesday afternoon.

“In Andrew County this morning. Is this really what it’s come to? Swastikas? #MOSen,” Hawley said.

McCaskill and Hawley, neither of whom is Jewish, are neck-and-neck in the Senate race. RealClearPolitics.com average indicates that Hawley has a 0.2 point lead over McCaskill.

McCaskill, who has served in the Senate since 2007, released an ad earlier this week claiming that “Claire's not one of those crazy Democrats. She works right in the middle and finds compromise." Missouri, long regarded as a bellwether, has shifted red, voting against President Barack Obama in 2008 and 2012 and for President Trump in 2016.

The two will face off in the 2018 midterm elections on Nov. 6.