WASHINGTON: Donald Trump has thrown his full weight behind a contested plan to replace Obamacare, battling to overcome resistance from his Republican Party’s right wing and meet a key campaign pledge 50 days into his presidency. With Democrats united against the new health care plan, Trump can ill afford defections from within as he seeks to drive home the top legislative priority of his new administration. While the bill winds its way through Congress this month, Trump is using his bully pulpit, powers of persuasion, and deal-making savvy in a bid to salvage the controversial plan. He met Friday with senior congressional Republicans to discuss the way forward on the repeal and replacement of Barack Obama’s signature health care law. “We must act now to save Americans from the imploding Obamacare disaster,” Trump said as he sat down with the lawmakers. “This is the time we’re going to get it done.” The president has spent much of the week huddling with key health care players, including Republicans who support and oppose the bill, known as the American Health Care Act. On Wednesday, he hosted several conservative groups that have expressed concerns about how the plan to use tax credits for people to buy insurance on the free market is too similar to the subsidies in Obamacare. Trump will send Vice President Mike Pence to talk up the bill Saturday in Kentucky — an arm-twisting gesture of sorts as Kentucky’s Senator Rand Paul is one of the plan’s chief Republican critics….