Mitch McConnell prevents donor revolt, but for how long?

Senate Majority Leader Mitch McConnell is holding off a revolt by his loyal campaign contributors for now, even as other donors angry about Republican failures in Congress reject pleas for cash to support the party's 2018 campaign.

McConnell, attempting to rebound from stinging defeats on Capitol Hill and the campaign trail, has generally maintained buy-in from his "roster of several hundred committed donors" cultivated since the 2010 election cycle, especially high rollers that write seven-figure checks to the Kentuckian's super PAC, Senate Leadership Fund.

That's not to say they're pleased.

McConnell's donors are frustrated with the collapse of Senate legislation to repeal Obamacare and unhappy about the outcome of a September special election in Alabama. SLF spent $9 million of their money in that campaign but still failed to push appointed Sen. Luther Strange past fiery culture warrior Roy Moore, a retired judge.

But in contrast to the disappointed GOP donors who are shunning Republicans' requests for money to finance their war chests and the campaign committees charged with defending the party's congressional majorities, McConnell's backers are giving him a chance to deliver tax reform before they consider pulling the plug.