Tom Cotton is a combative freshman Republican U.S. senator from Arkansas who’s proven to be unafraid to speak his mind on just about anything … or anyone.

But when he was asked to make the case for Donald Trump’s election as the next president of the United States, Sen. Cotton turned strangely quiet.

It’s up to Trump, he said, to make his own case.

http://www.politico.com/story/2016/07/tom-cotton-donald-trump-225071

What gives? This is the young man — an Iraq War veteran — who recently called Senate Minority Leader Harry Reid all kinds of names while condemning his leadership in the upper legislative chamber.

This looks to me like another case of Republican officials finding it hard to articulate why they support the presumptive presidential nominee of their own party.

Cotton’s  demurring on that today exemplifies the concern that Trump should be feeling as his nomination draws near.

The way I see it, candidates need vocal and articulate surrogates to speak for them. Whether they’re running for president or county commissioner, candidates depend on the good will of others to push them forward.

Trump keeps trashing not only the Democrats who, naturally, are going oppose him but also Republicans who are reluctant to chime in with words of encouragement.

What did Trump say recently? Line up behind me or just “be quiet.”

Cotton has endorsed Trump. He’s being “quiet,” though, on explaining his reasons for the endorsement.