DES MOINES, Iowa (AP) — President Donald Trump campaigned on a promise to deliver a “spectacular” yearlong birthday party to mark 250 years of American independence. On Thursday, he will be in the U.S. heartland to kick off the patriotic festivities — and to celebrate the final passage of his sweeping tax cuts and spending package.Trump is expected to tout the major piece of his agenda when he takes the stage Thursday at the Iowa State Fairgrounds in Des Moines, according to the White House. This comes just hours after the House pushed it through in a tight roll call...