After Health Care Victory, Senate Democrats Seek Compromise on Tax Plan On Tuesday, 45 Senate Democrats sent a letter to President Trump; the Senate majority leader, Mitch McConnell; and Senator Orrin G. Hatch, the Republican chairman of the Senate Finance Committee, urging them to work with Democrats on a tax plan. “We will need to use reconciliation because we have been informed by the majority of the Democrats in a letter I just received today that most of the principles that would get the country growing again, they’re not interested in addressing,” Mr. McConnell said, leaving the option for Democrats to support a Republican-led tax plan. WASHINGTON — Emboldened by the failure of Republicans to pass health care legislation on their own, Senate Democrats are seizing the opportunity to influence the coming overhaul of the tax code with a call for bipartisanship. The parties are in closer agreement on changes to the corporate tax system, but Democrats argue that the cuts Republicans are proposing are far too deep. They could be ripe targets for Republicans looking for Democrats to get on board with their tax plan. It was clear on Tuesday that Republicans are not eager to let Democrats meddle with their plans for a tax overhaul, even if they would welcome a few of their votes.