https://www.zerohedge.com/political/activists-more-halfway-forcing-constitutional-amendment-convention

“In 2016, Convention of States Action held a mock constitutional convention, and six amendments proposals were advanced. Among other things, they included:

Congressional term limits
Requiring a two-thirds vote of the House and Senate to increase the public debt
Restoring the Commerce Clause to its original intent and scope
Repeal of the 16th Amendment, which gave us the income tax
Giving states, by a three-fifths vote, the power to negate any federal law, regulation or executive order
Giving Congress an easy means of overriding federal regulation”

If that’s ALL they accomplished, that would be a lot.
Some are concerned trojan horses would get slipped in.