Health insurance premiums for 2018 are on the rise for many, and for that, most of the blame falls squarely on the shoulders of President Trump.

In recent days, a bevy of insurers have announced significant increases for Americans who purchase their coverage on the exchanges: a minimum of 12.5 percent by Covered California, 34 percent by Anthem in Kentucky and 43.5 percent by Medica in Iowa, to name just a few.

Still more hikes may come from these insurers and others, who cite uncertainty around the Affordable Care Act as the principal culprit in this disturbing trend.