Donald Trump has continually promised that eventually he will start acting more "presidential" and shelf the abrasive attitude he has often flaunted on the campaign trail. Stephen Colbert says he has a lot more work to do. 

Trump swept Tuesday's primaries in Pennsylvania, Delaware, Rhode Island, Maryland and Connecticut, making it almost inevitable that he will emerge as the Republican nominee for president. But on Wednesday's episode of "The Late Show with Stephen Colbert" on CBS, Colbert pointed out the expected tone change from the Trump campaign is still lacking. 

The comedian played a few clips of Trump attacking Hillary Clinton, the presumptive Democratic nominee for president, on the campaign trail Wednesday. While the attacks represent a shift in focus from Trump toward the general election, his accusations that Clinton is "playing the woman card" feel like the same old personal jabs he has been using since the beginning of his campaign. Colbert mocked Trump for suggesting that in someone else's hands, the "woman card could be very powerful."

"Donald can say all of this because he is playing the man card," Colbert chided, pulling out an actual card. "All of us guys get one of these. They are great. They get you paid more; you can explain things to women about women and, as a white man, mine's also a get-out-of-jail-free card."

Colbert also played a few clips of Donald Trump calling into morning news shows Wednesday where he consistently sounded curiously drowsy. Multiple news anchors, including the hosts of MSNBC's "Morning Joe," went as far as to ask the candidate if he was tired. Trump denied the claims, but Colbert had some fun at the candidate's expense anyway.  

"Donald Trump just showed us how he would sound as president when he gets that 3:00 a.m. phone call," joked Colbert, who then imitated Trump. "'What? a bomb? Build a wall around it, and make the terrorists pay for it — I have to pee.'" 

In the Tuesday primaries, Trump strengthened his stranglehold over the GOP nomination. Trump now has a commanding lead in the delegate count with 987 delegates. Texas Sen. Ted Cruz is a distant second with 562 delegates, while Ohio Gov. John Kasich lags in third with 153 delegates. Meanwhile, Clinton pulled farther ahead of Vermont Sen. Bernie Sanders, with wins in the primaries in Connecticut, Delaware, Maryland and Pennsylvania — Sanders only won in Rhode Island. 

"More than ever it is looking like this fall the choice will be between Hillary Clinton and Donald Trump, the matchup America did something to deserve," joked Colbert.