RNC chairman Reince Priebus tapped former congressman Enid Mickelsen to chair the all-important rules committee during the convention. 

Just two weeks ago, Enid had this to say about the presidential race:

Enid Mickelsen just named chair of GOP convention rules panel. Here's what she told Salt Lake Tribune two weeks ago. pic.twitter.com/1MnVkdLvyl

— Ryan Struyk (@ryanstruyk) June 17, 2016

She has also spoken approvingly of the idea that the rules could be changed to allow delegates to vote for someone other than a candidate they are bound to by result of primary or caucus.

It's unkown if Trump was consulted about the choice.

Politico:

"My mindset is that we’re going to be fair, that people are going to be able to have an opportunity to make their proposals, debate their proposals or suggestions,” she said. “We are going to make this a fair and deliberative process. Nothing’s going to come out of this that’s been done by parliamentary trickery.”

The convention rules committee, a 112-member panel that consists of two delegates from every state and territory, is empowered to write the rules of the upcoming convention as well as set the framework of the GOP presidential nominating process that will take place in 2020.

Mickelsen herself has proposed dramatically altering the calendar of GOP primaries to include a new batch of early states, though she told POLITICO she won’t introduce that proposal as chair, leaving it to others instead.

The rules committee is likely to be the beginning of an effort by delegates opposed to Trump’s nomination to alter rules that would free delegates to choose someone else. Mickelsen said she was expecting spirited debate on those matters.

“There’s been a lot of speculation, there’s been a lot of discussion, but I’m confident in the end we’re going to make this a fair process,” she said. “Will it be lively? It probably will be at times.”

Mickelsen said she told Priebus months ago that she was open to chairing the rules committee if he wanted. She’s already the vice chair of the committee organizing the convention and as a result has been neutral in the presidential race so far — which she noted made her a good candidate for the rules post.

In response to her statement that she's going to be fair to all, Allahpundit makes that debatable:

Okay, but Patrick Ruffini remembered this quote from a story back in March about Romney’s #NeverTrump speech at the time:

[E]xisting nomination rules — including those that bind delegates to vote on the first ballot according to the results of their state primaries and caucuses, as well as those governing nominating a candidate not already in the race — can all be changed, said Utah Republican National Committeewoman Enid Mickelsen.

Mickelsen, a vice chairwoman of the national Republican Party committee responsible for putting on the convention, said it’s the delegates, not the party or the candidates, who control the nominating process.

Does that sound like someone who can be fair to Donald Trump?

Priebus is hedging his bets with Trump.  It's still a month before the convention convenes, and given Trump's track record of making inappropriate, racist, and sexist comments, it would seem prudent to give the party an "out" if Trump suffers another meltdown.  Personally, I think it delusional to believe that delegates bound to Trump would so easily slough off their loyalty and vote for someone else.  If anyone but Trump emerges as the nominee from that convention, the Republican Party will be destroyed. 

But these are politicians with their fingers in the air, checking which way the wind is blowing.  If Trump's antics lead to a tornado against him, they want the opportunity to change.  That's the way politics has always been, and that's the way it is today.