Though stung by a series of defeats in special congressional elections, Democrats believe they can make inroads with some of Trump's most loyal supporters by driving home the combined potential impact of proposed tax cuts that would largely benefit the wealthy and pending health care legislation that would fail to cover tens of millions of Americans enrolled in "Obamacare." "Unlike the Democrats who have no agenda and no ideas, the president is working hard to lower the cost of health care, cut taxes for all families and businesses, and create good jobs and higher wages for all," said White House deputy press secretary Sarah Huckabee Sanders. The draconian impact of the GOP Trumpcare bill is a potential asset for the Democrats, said Wendy Schiller, political science professor at Brown University, but the big obstacle for them is that the bill's provisions do not take effect until well after 2018, and not entirely until 2025. [...] it is unclear they will be able to persuade the majority of voters in congressional districts that the sky is falling on health care if nothing much changes. [...] many of the president's backers don't care about Trump's wealth or his policies, their loyalty instead guided by partisan impulses and Trump's larger-than-life personality and promises. The president's allies point to all the failed attacks launched at Trump during the campaign and to GOP wins in the recent special elections as evidence that the Democrats won't be successful if they are simply the anti-Trump party.