Ex-Speaker Newt Gingrich (R-Ga.) on Tuesday challenged Senate Majority Leader Harry ReidHarry Mason ReidGOP poised to advance rules change to speed up Trump nominees Dems walk tightrope on Pompeo nomination The Memo: Teens rankle the right with gun activism MORE (D-Nev.) to a debate on whether the government should continue to fund ObamaCare.

After Gingrich’s tweet, Reid responded Tuesday morning on Twitter, asking if the former Speaker was saying he supported a shutdown of the government.

Gingrich served as Speaker when the government shut down in 1995 over a spending fight between congressional Republicans and the Clinton White House. That fight didn’t go well for House Republicans at the time, as Clinton won reelection in 1996. 

Gingrich also said he’d love to have Reid on “Crossfire” when the show makes its return to CNN. Gingrich will be one of the show's new co-hosts. 

Sen. Mike LeeMichael (Mike) Shumway LeeSenate confirms Trump’s pick to lead NASA Key senators warn Trump of North Korea effort on Syria Rep. Jordan: Action in Syria ‘should be debated in Congress’ MORE (R-Utah) is currently pushing a proposal that would shutdown the government if the Obama administration's healthcare law is not defunded. Republicans have been debating its merits, with a number of conservatives including Sen. Marco RubioMarco Antonio RubioGOP Senate candidates trade barbs in brutal Indiana primary Students gather outside White House after walkout to protest gun violence Overnight Energy: Senate confirms Bridenstine as NASA chief | Watchdog probes Pruitt’s use of security detail | Emails shine light on EPA science policy changes MORE (R-Fla.) offering vigorous support. 

The proposal has been criticized by others, including Sen. Bob CorkerRobert (Bob) Phillips CorkerKorean peace talks pose new challenge for Trump GOP senator: Democratic opposition to Pompeo 'driven 100 percent by politics' Corker: Charming North Korea into getting rid of nuclear weapons is not realistic MORE (R-Tenn.), who on Tuesday called the idea a "silly effort."