Today, as President Biden delivers a major address in Poland ahead of the first anniversary of Russia’s invasion of Ukraine, his would-be successors are vying for visibility back home. Florida Gov. Ron DeSantis (R), an expected 2024 White House contender, talked tough on crime during appearances Monday in New York, Pennsylvania and Illinois. Former president Donald Trump is heading Wednesday to East Palestine, Ohio, the site of the train derailment two weeks ago.