Climate activist Tom Steyer's super PAC is out with a new campaign ad that looks remarkably like a normal campaign ad.

It's remarkable because while the group's last ad was a lot of things, normal most definitely was not one of them.

The new ad from NextGen Climate Action targets state Sen. Joni Ernst, the Republican nominee for U.S. Senate in Iowa. (So did the last one.) It casts Ernst as an enemy of renewable-energy jobs. It has all the staples of a typical campaign ad: tense music, a narrator, footage of workers. The usual.

The last ad featured two men in a smoke-filled room discussing Ernst signing an anti-tax pledge. It wasn't even about energy or climate issues. It took forever to unwind and get to the point. It was over the top and, well, just bizarre.

Here, you be the judge:

Steyer has vowed to spend as much as $100 million on the midterm elections (though his super PAC has struggled to raise money). So, expect a lot more ads.

The question is whether they will mostly be normal or strange.