The graffiti was found shortly after 8 p.m. ET on Friday at Michael van der Veen in Exton, Pennsylvania, a suburb of Philadelphia, according to KYW-TV. Van der Veen had previously put forward arguments in defense of Trump in impeachment proceedings.

Detective Scott Pezick of the West Whiteland Township Police Department told KYW that although the department had no suspects, the house is now being monitored by private security guards and police are present in the area to prevent further attempts at vandalism.

The Philadelphia Inquirer also reported that van der Veen’s defense of the former president sparked protests in his office in downtown Philadelphia on Friday. The video showed a group that included a drummer holding signs in front of van der Veen’s office.

“What do you do when van der Veen lies? Convict. Condemn, ”the protesters sang, according to the investigator.

One day after the vandalism was discovered, the Senate voted to acquit Trump of charges of inciting the Capitol uprising on Jan. 6. Fifty-seven senators, including seven Republicans, voted to condemn Trump, without a two-thirds majority having to stop Trump from seeking higher office in the future.

Van der Veen produced one of the most memorable moments of the impeachment trial on Friday when his response to a question about subpoenas sparked laughter from lawmakers in the Senate Chamber.

“None of these statements should be made by Zoom,” said van der Veen on Friday. “These statements should be made in person at my Philadelphia office.”

“That’s how it works, folks … I don’t know why you’re laughing … there’s nothing ridiculous here” – the Senate Chamber bursts into laughter after Van der Veen threatens to depose Nancy Pelosi and Kamala Harris, not from Zoom, but in his Philadelphia office pic.twitter.com/T0xiozHckE

– Aaron Rupar (@atrupar) February 13, 2021

It’s unclear what made lawmakers laugh – van der Veen’s proposal to hold deposits outside Washington, or his Philadelphia debate.