By Trevor Hunnicutt, Nandita Bose and Andrea Shalal WASHINGTON (Reuters) – U.S. President Joe Biden is getting the opponent he thinks he was made to beat in 2024. Donald Trump’s decisive victory in the first two Republican presidential contests in Iowa and New Hampshire make almost certain what Biden’s re-election campaign has predicted for months. It’s a rematch they say they are confident Biden will win, even as public opinion polls show him tied with Trump and Americans are angry over high prices and question his age, his economic plans and his policies on the border and in the Middle East….