Photo by Chris Pizzello/Invision/AP, File
And it doesn't appear that the Republican front-runner is going to walk away impressed with rival party's field.
Trump repeatedly panned the candidates, especially the lower-tier Democrats polling at the bottom of the pack.
"All are very scripted and rehearsed, two (at least) should not be on the stage," Trump mused at one point.
Some of his other thoughts can be found below.
On former Maryland Gov. Martin O'Malley (D)
O'Malley, as former Mayor of Baltimore, has very little chance.
- Donald J. Trump (@realDonaldTrump) October 14, 2015
On former Sen. Jim Webb (D-Virginia)
"@Iamnewhere: Webb is trying to be @realDonaldTrump and its not working." He is not doing well!
- Donald J. Trump (@realDonaldTrump) October 14, 2015
On former Rhode Island Gov. Lincoln Chafee (D)
Can anyone imagine Chafee as president? No way.
- Donald J. Trump (@realDonaldTrump) October 14, 2015
"@MichaelTribunel: @realDonaldTrump imagine Chafey standing up to Putin"
- Donald J. Trump (@realDonaldTrump) October 14, 2015
Trump thoughts in general:
"@princeolivier13: Why do we have to be tortured by watching these clowns! Have the election tomorrow! #trump2016 #DemDebate"
- Donald J. Trump (@realDonaldTrump) October 14, 2015
Get rid of all of these commercials. #DemDebate
- Donald J. Trump (@realDonaldTrump) October 14, 2015
Putin is not feeling too nervous or scared. #DemDebate
- Donald J. Trump (@realDonaldTrump) October 14, 2015
"@rjdicksii: @realDonaldTrump. These cats are like bad used car salesmen."
- Donald J. Trump (@realDonaldTrump) October 14, 2015
Trump did praise Sen. Bernie Sanders (I-Vermont) for defending former Secretary of State Hillary Clinton:
Good move by Bernie S.
- Donald J. Trump (@realDonaldTrump) October 14, 2015
But went back to criticizing the Democratic field:
Sorry, there is no STAR on the stage tonight!
- Donald J. Trump (@realDonaldTrump) October 14, 2015