Hillary Clinton and Donald Trump are back on the campaign trail Tuesday. After the first presidential debate of 2016, their campaigns are already looking ahead to Round Two next month in St. Louis.

The GOP nominee boasted of spending virtually no time preparing for the debate, and the reviews have been pointed. While many analysts and politics watchers gave him points for keeping his cool in the beginning, it quickly became apparent that his Democratic opponent was getting under his skin.

"By thirty minutes into it he had become the Donald Trump that we've come to know," said Ross Ramsey, executive editor of the Texas Tribune, who notes the real judges are undecided voters. "I don't think it matters when people like us call winners and losers. I think the general consensus is that Clinton had the better debate, but I think that Trump's fans and followers probably score it differently."

"I thought it was great," Trump himself told ABC News in the post-debate spin room. "I mean, I got everything I wanted to say, I got it out, other than the transgressions of Bill."

So what about Round Two?

"I think they'll move it faster and want to discuss more issues," said Glenn Smith with Progress Texas. "Stylistically, I wouldn't change a thing in the secretary. I thought she was brilliant."

"I think Clinton's on the right track. I think she needs to just keep doing what she's doing," offered Ramsey. "Trump needs to convince people that he has the temperament -- Clinton made a big deal out of this, so did he -- but he has to convince people he has the temperament to be president and have his finger on the button, as Clinton put it."

"I think this first debate was clearly a high water mark for her," said Travis County Republican Party chair James Dickey, who suggests Trump could have hit Clinton harder; in particular, on her foundation. It was one of a handful of high profile issues not addressed during the first showdown.

"I think he clearly has a chance to learn and gain and improve," said Dickey, "And there are a lot of things that I hope are brought up next time and I think they will be. And that will make a difference."

The vice presidential candidates square off Tuesday, October 4 in Farmville, Virginia. The second presidential debate is scheduled for Sunday, October 9 in St. Louis, Missouri. The contest will be hosted by Washington University and moderated by ABC's Martha Raddatz and Anderson Cooper of CNN.