Trump now wants to tell states how to conduct elections. The WSJ reports Trump Calls for Voter Identification for All U.S. Elections

President Trump pledged to sign an executive order mandating that voters be required to present identification before casting ballots, widening his push to alter voting requirements ahead of next year's midterm elections.

If he seeks to change voting requirements, he would likely be challenged in court because elections are administered by states. The Constitution gives Congress the power to change those rules.

In June, a federal judge blocked most of Trump's March executive order that required proof-of-citizenship documentation for those registering to vote using federal forms and tapped government agencies to crack down on ineligible voters. Most people register to vote through their states.

The order threatened to pull the small amount of money earmarked by Congress for elections from states that fail to comply.

The judge ruled that the order went beyond Trump's authority.

Thirty-six states have laws requesting or requiring voters to show some form of identification at the polls, according to the National Conference of State Legislatures. In Congress, lawmakers have introduced a bill to require voters to show identification to vote. 

I sympathize with voter ID and in-person voting as Trump wants.

However, it's not Trump's call nor mine nor yours.

Moreover, if Trump can mandate in-person voting, what's to stop the next president from mandating mail-in ballots for everyone?

His executive order is unconstitutional and headed nowhere. And that's a good thing because who knows what Democrats might do the next time they get a chance.

Constitutionally, Trump should ask Congress for changes. But that would take 60 votes and he does not have them.