Last week's California primaries have sparked a resurgence of election fraud claims reminiscent of 2020.

But these conspiracy theories don't withstand scrutiny, nor do they make much political sense.

And confronted with the lack of evidence, some GOP leaders are now arguing the fraud is real but it's just not detectable.

AI-generated summary was reviewed by a CNN editor.

The last week has brought the largest resurgence of election denialism since the aftermath of the 2020 election. Many on the right have cried foul over late shifts toward Democrats in results from California’s June 2 primary.