THE BURNED OVER DISTRICT

Those in the Republican establishment with any brains know that unless the party controls the Senate, nothing he wants will pass and he will probably be impeached before his 100 days are up. With that in mind, the big money is being thrown at the Senate races where the Republicans are seriously in trouble because you can't gerrymander a state.

Hundreds of millions of dollars that Republican groups had been poised to spend in the 2016 presidential election are now increasingly likely to move into Senate and House races, as many big donors look to distance themselves from the party’s presumptive nominee, Donald J. Trump.

These groups and their Democratic counterparts have already spent more than $25 million on advertising in Senate general election races alone, according to Kantar Media/CMAG, significantly outpacing both the 2014 and 2012 campaigns in outside spending. And more than $134 million in advertising for Senate races alone has been reserved by groups for the general election.

“There’s at least uncertainty about what the impact of Trump’s candidacy would be down ticket, and there’s also a sense that investing in the Senate is an important defensive play,” said Steven J. Law, the president of American Crossroads, a Republican “super PAC” that was one of the biggest spenders in the 2012 campaign. “It’s an insurance policy against whatever might happen at the presidential level, keeping in check the potential for a President Clinton or keeping in check whatever a Trump presidency might mean.”

Mr. Law added that many of the donors to his group, which was founded by Karl Rove, the Republican strategist, are still eager to play a role in the 2016 election, but do not necessarily feel comfortable yet supporting Mr. Trump.

“A lot of our donors were investors in either campaigns or super PAC activity on behalf of specific presidential candidates who are no longer in the race, and that investment opportunity has been taken away,” he said.

Crossroads, which in early 2015 created a new group devoted solely to protecting the Republican Senate majority, is in a wait-and-see crouch, with officials saying that they currently have no plans to buttress Mr. Trump’s candidacy and that they expect the Senate contests to remain the focus.

And the vast political network of Charles G. and David H. Koch, the billionaire brothers who have provided critical support for conservative causes, which early last year pledged to spend nearly hundreds of millions of dollars on the 2016 election, has spent money only on Senate races so far. Its three most prominent groups — Freedom Partners Action Fund, Americans for Prosperity and Concerned Veterans for America — have already invested $12.4 million in five different states.

The Koch network announced on Tuesday that it had reserved an additional $30 million in digital and broadcast advertisements in crucial Senate swing states for September alone.

And Republican groups that spent more than $25 million trying to stop Mr. Trump’s march to the nomination are also directing their funds elsewhere. The Club for Growth, which ran a series of negative ads against Mr. Trump, has been spending aggressively in Senate and House races in Georgia, Indiana, North Carolina and Pennsylvania, among other states. (The group is frequently a target of criticism in the stump speeches of Mr. Trump, who calls its members “crooked as hell.”)

Plenty of Evil Koch money and that shitbird Rove's Crossroads along with all the usual presidential money is now flowing into Congressional races of all kinds. If you spend enough on specious bullshit ads, you can pervert anybody's reality and elect Republicans.