US President Donald Trump is set to launch another effort to roll back Obamacare. Reports say, he will seek Congressional approval for a new healthcare bill before he marks 100 days in office on the 29th of this month. <br/><br/>Trump and Congressional Republicans suffered a major defeat last month when they were forced to withdraw a bill to repeal and replace the Affordable Care Act. The legislation was opposed by Democrats and hardline conservatives of the Republican Party. <br/><br/>Trump suggested at the time that he would shift his priorities to tax reforms and other policies. But the President now appears poised to seek Congressional approval for a revised healthcare bill. He told reporters that he is not giving up, and that his plan is getting better and better.'<br/>US media say the White House is pressing Republican leaders to get the bill ready for a quick vote. But the reports say it remains unclear whether the legislation will win the support it needs in Congress.