ST. LOUIS/DEARBORN, Mich. (Reuters) – U.S. Democratic presidential candidates Joe Biden and Bernie Sanders campaigned in the Midwest on Saturday, as the two prepare for a showdown in Michigan, Missouri and four other nominating contests next week. Sanders, 78, who until recently was the front-runner in the party’s race to face Republican President Donald Trump in November, is now trailing in delegates and desperate to regain momentum after Biden, 77, received a rush of endorsements from party establishment figures following his strong “Super Tuesday” showing this week. With a rush of momentum, endorsements and campaign contributions flowing in after his strong Super Tuesday showing this week, Biden launched the biggest advertising blitz of his presidential campaign, according to a campaign spokesman who spoke on the condition of anonymity.
