Americans headed to the polls in Tuesday's midterm elections to deliver a verdict on the first two years of President Donald Trump's second term, with surveys and nonpartisan analysts favoring Democrats to wrest the House of Representatives from Republicans while control of the Senate remains uncertain. The battle for the Senate is unfolding across nearly 10 closely contested statewide races, most in Republican strongholds. History is against Trump's Republicans: the sitting president's party has lost ground in Congress in all but two midterm elections since World War Two. Trump's approval rating is hovering near his all-time lows, dragged down by deep voter frustration over the war with Iran and the resulting rise in fuel prices. There is little doubt this year's election is all about Trump, the central U.S. political figure for most of the last decade. Trump himself has told his supporters repeatedly to "pretend I'm on the ballot," a message Democratic leaders have happily echoed. Trump, in a television interview on Tuesday morning, boasted of what he billed as his achievements in Vene