Could Trump end up signing a single payer bill?

Nunes seems to think it essential that Republicans be re-elected to majorities in both houses of Congress, because Mueller won't exonerate the President, so we have to. Nunes has done everything possible to limit inquiry into the President's conduct with Russia and to attack the propriety of the Mueller investigation with questions about FISA warrants, etc. If the Dems win the majority in the House, then he loses the chairmanship of the House Intelligence Committee falls to the aggressive Democrat Adam Schiff, who wants to do a thorough investigation of the Russia scandal along the lines of the Senate Watergate Hearings under Sam Ervin in the 1970s, which revealed the White House Tapes, included John Dean's harmful testimony against Nixon, and eventually resulted in the Nixon's resignation to prevent inevitable impeachment and removal. If that happens, Nunes says on the tape that everything will be lost. I take it this means impeachment, or if not, maybe Nunes fears that Trump, facing a Democratic Congress, instead of just vetoing everything they put through, decides that he is the ultimate dealmaker, and so to prevent impeachment, maybe he will sign some things the Democrats want on immigration or health care. Who knows, maybe even single payer. After all, Trump's conservative convictions are questionable, even if the actions of his administration are conservative. Maybe he thinks the Democrats won't impeach him if he makes a deal with them, because they know that Pence is a much more principled conservative and would never sign Democratic bills.

Nixon went to China. Clinton signed welfare reform. Trump.....

I mean it would repeal and replace Obamacare, now wouldn't it.