Play of the Day: Donald Trump is Unhappy With the GOP Delegate Rules

The mogul's campaign is having some trouble rounding up delegates.

The Transport Workers Union Local 100 endorsed Bernie Sanders less than a week before the New York primary, causing The Tonight Show's Jimmy Fallon to joked about Hillary Clinton's recent subway gaffe Wednesday night and Late Night's Seth Meyers to also joke about Clinton's Metrocard troubles.

On the Republican side, Donald Trump has been complaining about the GOP primary rules being stacked against him. While The Daily Show devoted a segment to Trump's failed health supplement marketing scheme, Meyers put together a segment on Trump's issues with wrangling delegates to his cause. While the rules are complicated, Meyers argued, Trump's "very good brain" should have figured out the rules that were clearly laid out before him, even pointing to one Trump campaign gaffe mixing up Washington state and Washington, D.C.