Voters are divided on who they think will win Monday's presidential debate.
OPINION | Trump needs to be more nuanced, less shoot-from-hip in foreign policy
The candidates have been accused of using their debate invites to get under one another's skins.
Trump said he'd recognize Jerusalem as the capital of Israel.
"This smells like defeat," the former Mexican president tweeted.
"Isn't that her job?" he asked.
"Well, I hope so. I mean, my lawyers do it."
"Does your source about the unemployment rate agree with my source?"