As Twitchy reported, Secret Service Director Julia Pierson has tendered her resignation following a serious of colossal security blunders. That’s quite a turnaround from yesterday’s reports:

So, what changed Pierson’s mind? These tweeters have a theory:

Given what’s happened on Pierson’s watch, so do we.

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Related:

What? No way! Guess what Secret Service blames for WH fence jumper foul-up

‘You got to go, lady’: Time for bumbling Secret Service director to hit the road?

‘Ever heard of these guys?’ Rep. John Mica has some advice for Secret Service [photo]

‘I Was Mrs Potus I’d Kick Bigtime Ass!’: Cher outraged at White House security lapses

‘Third world competent’: Secret Service surprised by man with gun in elevator with president

‘BURN!’ Is this zinger from Secret Service hearing the ‘quote of the day’? (Spoiler: You will fist pump)

‘Disturbing projection’: NYT’s Peter Baker panned for questioning GOP concern for Obama’s safety

Later, alligator: Shamed Secret Service director Julia Pierson resigns