Former Rep. John Dingell John DingellRaces heat up for House leadership posts Democrats flubbed opportunity to capitalize on postal delays COVID-19 bill limiting liability would strike the wrong balance MORE (D-Mich.) blasted an illustration 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 tweeted Friday of a proposed "Steel Slat Barrier,” telling Trump to "sit on it" amid an ongoing government spending fight over funding for the border wall.

Sit on it, you imbecile. https://t.co/R4jOyjxsqv — John Dingell (@JohnDingell) December 21, 2018

ADVERTISEMENT

Dingell, 92, retired in 2015 after serving in the House for nearly 60 years, the longest-serving congressman in history.

He is known for his pointed wit on Twitter, but does not often attack Trump directly.

Trump has dug in over his demands for border wall funding after previously indicating he would be willing to sign a short-term funding bill without it. Recently, he has taken to describing the border structure as steel slats.

....It will be beautiful and, at the same time, give our Country the security that our citizens deserve. It will go up fast and save us BILLIONS of dollars a month once completed! — Donald J. Trump (@realDonaldTrump) December 19, 2018

House Republicans passed a short-term funding bill Thursday that included more than $5 billion in funding for Trump's border wall, which Democrats have said is dead on arrival in the Senate.

Failure to pass a year-end spending bill by Friday at midnight would result in a partial government shutdown.