Americans put Republicans in control of the US Senate again in 2018, with Trump in the White House, so Democrats have no one to blame but themselves for what's about to happen, and Harry Reid in particular for trashing the filibuster rule for judicial appointments.
From the story here, which explains it all:
The reason is simple, and was explained by Mitch McConnell at the time. Historically, throughout American history, when their party controls the Senate, presidents get to fill Supreme Court vacancies at any time — even in a presidential election year, even in a lameduck session after the election, even after defeat. Historically, when the opposite party controls the Senate, the Senate gets to block Supreme Court nominees sent up in a presidential election year, and hold the seat open for the winner. Both of those precedents are settled by experience as old as the republic. Republicans should not create a brand-new precedent to deviate from them.
