Rep. Alexandria Ocasio-Cortez, D-N.Y., would be her party's best bet against President Trump in 2020 -- if only she were eligible to run for president. That was the observation of pollster Frank Luntz on Tuesday night during an appearance on Fox News' "The Ingraham Angle." Luntz told host Laura Ingraham that 29-year-old Ocasio-Cortez has a "genuine" quality that most of the Democrats seeking the party's presidential nomination seem to lack.