[1/5] Former U.S. President and Republican presidential candidate Donald Trump rallies with supporters at a "commit to caucus" event at a Whiskey bar in Ankeny, Iowa, U.S. December 2, 2023. REUTERS/Carlos Barria Acquire Licensing Rights CEDAR RAPIDS, Iowa, Dec 2 (Reuters) - Donald Trump, the frontrunner for the Republican presidential nomination, told his supporters on Saturday to "go into" Philadelphia and two other Democratic-run cities to "guard the vote" in 2024, repeating his unfounded claims of widespread election fraud in 2020 as justification for the call to action. Speaking at a campaign event in Iowa, Trump said it was important...