“The assault on the Capitol was the end result of years of eroding the road between truth and fiction and proper and flawed,” mentioned Rory Cooper, a Republican strategist. Mr. Cooper argued there was a gap now for a “conservative candidate” to definitively decouple appeals to legislation and order from the selective enforcement of the Trump period, “however we’re far from that point.”

Different Republicans insist no floor has been misplaced on the problem — that the get together will seemingly retain the higher hand within the eyes of voters. “I believe Republicans proper now have the benefit of legislation and order and nonetheless do, no matter” what occurred on the Capitol, mentioned Chris Russell, a longtime Republican guide and advert maker.

And will Democrats “stick with a defund-the-police message,” Mr. Russell added — although Mr. Biden has denounced it — Republican candidates will seemingly proceed to seek out success in framing their get together as extra dedicated to public security, extra supportive of legislation enforcement.

All of which squares with how some Republican lawmakers have rationalized the Capitol assault. They insist that the ocean of marchers and rioters was not the outgrowth of months of indulging the president’s lie that the election was stolen, was not reflective of the get together’s core, certainly was not reflective of the get together in any respect. Throughout the nation, Republican officers have claimed falsely that the deaths and harm had been attributable to antifa.

Hogan Gidley, a spokesman for the president, argued Mr. Trump’s message of affection had not included those that stormed the Capitol. “The president was not speaking about these individuals; clearly it was the individuals who had been there to peaceably assemble, peaceably protest,” Mr. Gidley mentioned, although Mr. Trump had not specified this truth. “As a result of we imagine in defending not simply the idea of legislation and order, however the precise courageous women and men who institute legislation and order.”

But if legislation and order means a dedication to equal safety and justice, not even Mr. Trump’s personal aides appear certain that, within the closing days of his presidency, his supporters will abide it.

And so the law-and-order presidency ends like this: a whole bunch of Nationwide Guardsmen posted behind a seven-foot fence looped by razor wire, defending the Capitol not from the individuals Mr. Trump spent his presidency demonizing, however all those he didn’t.