Ally at R.N.C. Wants Party to Aid Trump’s Effort to Push Haley Out

One of Donald J. Trump’s key allies inside the Republican National Committee is trying to force the party’s official body to say that the G.O.P. presidential nominating contest is effectively over, even though only two states have voted and Nikki Haley has vowed to continue her campaign against the dominant front-runner.

David Bossie, an R.N.C. committeeman from Maryland and a longtime Trump confidant, has proposed a draft resolution proclaiming Mr. Trump the party’s “presumptive” nominee, according to two people with direct knowledge of his role in the effort.

Mr. Bossie previewed his plan in an interview with the television host Chris Cuomo on NewsNation after Mr. Trump won the New Hampshire primary on Tuesday.

“Donald Trump is the apparent nominee at this point,” Mr. Bossie said, adding that he would bring up the issue at R.N.C.’s meeting next week in Las Vegas. “It’s over and it is time for us to come together.”

The resolution has no practical effect on the primary elections taking place, which are run at the state level by local officials, some of whom are R.N.C. members but are required by state party rules to remain neutral. Resolutions such as Mr. Bossie’s do not force the R.N.C. to do anything or change the process for how candidates accrue delegates.

Still, there may be a number of people who want to back the resolution, in a symbolic show of support for Mr. Trump. And it could give cover to the committee to start moving formally to back him in a general election, as Ms. Haley, the former governor of South Carolina, faces pressure from a number of Republican officials to end her candidacy.

The news website The Dispatch first reported on the resolution. The document, which was independently obtained by The New York