It’s a tough call where to draw the line, but in what was posted it says that he is targeting ‘false’ media reports. That’s what libel is, and libel is a legitimate restriction on the first amendment. All rights have some limits, when ones rights run afoul of other peoples rights and freedoms. But where you draw the line, and who decides whether the line has been crossed are the difficult questions - as you point out.
The largely democratic/progressive press tends to put hit pieces out right before elections; only to find out after the election, that they misquoted in error, etc.
They do dishonest reporting to sway elections and then go, ooops, well, that was not exactly true.
Remember Herman Cain?
If Trump had his way, he’d be defending a lot more lawsuits than he’d be filing. Besides, Trump has never won a defamation case.
Up until Trump the Constitution drew that line. Now “All rights have some limits”?