It’s hard enough to digest the policy details of the GOP tax overhaul plan — but add in a dose of distraction from the sprawling probe of Russian interference into last year’s elections and it’s easy to lose any budding “taxmentum.”

Selling a comprehensive tax code rewrite — even if it’s packaged as a tax cut for individuals and businesses — is so challenging that Congress hasn’t done it since 1986.

Now, on the cusp of moving a bill, the special counsel’s recent indictments have rocked K Street, including one of its best-known firms, the Podesta Group.

Still, against that backdrop, the Trump administration and congressional Republicans — along with many in the nation’s business community — say they are keeping their attention fixated on building momentum for the tax measure.

The stakes couldn’t be higher: Republican control of Congress is on the line. The biggest GOP donors may pack up their bags of cash if their party can’t push forward a meaningful tax bill. Voters, too, may lose enthusiasm for Republicans.