<p>A triumphant President Donald Trump told Congress on Tuesday (March 4) that "America is back" after he reshaped U.S. foreign policy, ignited a trade war and ousted tens of thousands of government workers in six tumultuous weeks since returning to power, drawing jeers from some Democrats who walked out in protest.</p>Analysts noted the sharply partisan tone and said Trump, a Republican, missed opportunities to try to find common ground with Democratic opponents on some issues, as challenging legislative initiatives - such as funding the federal government - lie ahead requiring bipartisan support.