WASHINGTON — Republicans are abandoning their long crusade to repeal the Affordable Care Act, making the 2022 election the first in more than a decade that won’t be fought over whether to protect or undo President Barack Obama’s signature achievement. The diminished appetite for repeal means the law — which has extended health care coverage to millions of people and survived numerous near-death experiences in Congress and the courts — now appears safer than ever. With just more than a month before the next election, Republicans in Congress and on the campaign trail aren’t making an issue of Obamacare. None...