TAMPA -- The Republican candidates for president gather tonight to debate in Tampa, PolitiFact’s home turf. We’ll be there for this, their 18th faceoff.

What will they say?

We’ve watched and fact-checked debates 1 through 17 and can tell you the candidates have their favorite talking points and attack lines. And they’ve, well, started to repeat themselves.

Here, we present a candidate-by-candidate guide to what Floridians might hear, with a special emphasis on the repeated statements that don’t match up with the facts.

Mitt Romney

Romney, the former governor of Massachusetts, saves his harshest attack lines not for his fellow Republicans but for President Barack Obama. He’s said several times that Obama has traveled around the world apologizing for America, and that thanks to Obama’s economic policies, “We’re inches away from no longer having a free economy.

His claim for presidential apologies, however, is at odds with Obama’s actual statements. We read through Obama’s speeches and public remarks while traveling abroad but could not find a statement that included the words “sorry” or “apologize.” Instead, Obama’s remarks contained some criticism of past U.S. actions, but those passages were typically balanced by praise for American ideals, and Obama mentioned how other countries have erred as well. We’ve rated Romney’s statement Pants on Fire.

The claim that the United States is “inches away from no longer having a free economy” also lacks evidence. Economic data shows the federal government has a large influence on the overall economy, but there is little indication that the government’s role has risen enough in recent years to threaten the free market the U.S. has operated under for decades. International comparisons show that the U.S. ranks low in both total tax burden and high in economic freedom. Conservative think tanks that rank countries for economic freedom still place the U.S. in the top tier. We rated Romney’s statement Pants on Fire.

On the domestic front, Romney has had to defend himself from charges that the Massachusetts health care law was the model for Obama’s national health care law. Such charges are accurate — the federal law is very much like the state law. Romney defends himself, though, by pointing out that people in Massachusetts like the state plan “by about a 3 to 1 margin.” We found polls over several years support that claim, and we rated it True.

Newt Gingrich

Gingrich received thunderous applause in South Carolina when he defended himself against criticism for calling Obama the “best food stamp president in American history,” a comment many saw as racially loaded. We checked Gingrich’s defense, that, “More people have been put on food stamps by Barack Obama than any president in American history.” We rated that Half True: More people are on food stamps, but Obama’s policies didn’t contribute to that. The surge is due to a combination of economic problems Obama inherited and longstanding policy changes that expanded access to the program. The policies began under President George W. Bush.

Gingrich also likes to take credit for balanced budgets during the administration of President Bill Clinton, when Gingrich was speaker of the House. “I balanced the budget for four straight years, paid off $405 billion in debt,” Gingrich has said. We rated that statement False. Gingrich was speaker for only two of the four years in question, and the debt actually increased during his speakership.