Other coverage of this bill suggests McConnell is OK with passing something he sees as imperfect, given cover from Trump.
> Should the White House and House Democrats come to terms, Mr. McConnell has indicated privately that he would quickly bring up the measure and pass it to allow Mr. Trump to sign it into law.
https://www.nytimes.com/2020/03/12/us/politics/trump-house-c...
It’s hard to imagine he would incentivize Pelosi to pass an aid bill just so he can block it, what is the political upside for him if he does that?
Similarly, the fact that Pelosi is even trying to work with Trump, Mnuchin, etc suggests she believes passage is possible. If she’s just doing this to make the senate republicans look bad when they reject it, then it’d be much easier to pass something with little to no input from Republicans.