<img src="https://www.washingtonpost.com/wp-apps/imrs.php?src=https://arc-anglerfish-washpost-prod-washpost.s3.amazonaws.com/public/O7WT7BRO4QI63PGGBB2LE2XCSY.jpg&w=1024" /><br>In a speech at the White House, the president is expected to detail steps his administration is taking to make the new omicron-targeting boosters widely available this fall.