By Leah Douglas WASHINGTON (Reuters) -The Biden administration announced on Wednesday more than $2.1 billion in funding to shore up weaknesses in the country’s food supply system exposed during the COVID-19 pandemic and the aftermath of the Russian invasion of Ukraine. Near-record food prices have challenged governments around the world, and the Biden administration’s handling of inflation is a major concern for voters ahead of midterm elections in November. U.S. Agriculture Secretary Tom Vilsack unveiled the new funding, designed to enhance competition in food processing and distribution, inc…