Democratic pollster Cornell Belcher said on NBC News Sunday that Vice President Kamala Harris should continue to avoid sit-down interviews with the press and instead focus on “talking to the voters.” Since becoming the Democratic Party’s presidential nominee after President Joe Biden ended his reelection bid, Harris has not sat down for an in-depth media interview. With her upcoming debate against former President Donald Trump being one of her first major non-scripted events, Belcher pushed back on PBS’s Amna Nawaz after she advocated for Harris to answer questions from the press. Read: Fox Ne…