US President Joe Biden on Friday rolled out a new set of initiatives to reduce health care costs: a crackdown on what he called “junk” insurance plans that play consumers as "suckers," new guidance to prevent surprise medical bills and an effort to reduce medical debt tied to credit cards. Gearing up for his 2024 reelection campaign as inflation remains a dominant concern for voters, the Democratic president has emphasized his policies to help families manage their expenses, fight so-called junk fees and improve their economic well-being.