The messages just keep coming, often in all caps.

5X-MATCH TO SAVE THE SENATE.

They’ve just taken a page out of the scammers' playbook.

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“The campaigns want you to react quickly,” Jones said.

It’s kind of the blessing and the curse of mobile messaging."

The vast majority of American voters now have smartphones.

Replying “STOP” should make the messages stop coming.

Numbers also can be individually blocked and reported as junk.

And when it comes to PACs, just because one is registered doesn’t mean it’s legitimate.

Voters need to do some research and vet a PAC before giving money to it.

Unfortunately, that’s something these text-based campaigns can make tough.

Links in several fundraising text messages analyzed by CNET led to sites supported by the Democratic fundraising site ActBlue.

Voters annoyed with the messages are going to have a lot of deleting and blocking to do.