This is one of Trump’s worst lies.
Here’s more background on McConnell’s work to block Obama’s judicial appointments.
For anyone critical of Reid lowering the 60 vote-threshold, see this from the Politico article linked to at the top – the bolding is mine:
“Senate Democrats infuriated Republicans in November 2013 by scrapping the 60-vote filibuster rule for judicial nominations — a change Obama and then-Majority Leader Harry Reid (D-Nev.) used to usher through 96 judicial nominations. ”
If Reid hadn’t eliminated the 60-vote rule, Trump would have even more judicial openings.