Republicans and Democrats clashed on Twitter over President Obama’s healthcare law ahead of a House repeal vote.

On the same day House Republicans planned a vote to repeal the president’s signature legislation, House Oversight Committee chairman picked a fight with the White House, challenging his followers to say in three words why the law should be repealed.

One popular response from conservatives was to use the words of Democratic Sen. Max BaucusMax Sieben BaucusBooker tries to find the right lane  Top Lobbyists 2017: Hired Guns GOP tries to keep spotlight on taxes amid Mueller charges MORE (Mont.), who last month warned the implementation of the law would be a “train wreck.”

But Democrats didn’t sit passively by as their political opponents publicly trashed the law.

The White House tweet provoked Speaker John Boener (R-Ohio) to return to a phrase he used to describe the Obama administration earlier in the day at a press conference where he discussed the IRS controversy.

The back and forth escalated from there.