(The Center Square) – Former President Donald Trump’s top two challengers in the GOP presidential primary earlier this year criticized President Joe Biden’s policies in back-to-back appearances Tuesday night at the Republican National Convention. Florida Gov. Ron DeSantis and former UN Ambassador and South Carolina Gov. Nikki Haley mostly stuck to the thee of the night, “Make America Safe Again,” touching on issues ranging from the deadly withdrawal of U.S. troops from Afghanistan, to the wars in Ukraine and Gaza that started under Biden’s watch, to the illegal immigration crisis at U.S. borde…