Michael Lohan Accuses Dina of Lindsay "Cover Up"

In an epic battle for Worst Parent of All Time, Michael Lohan says he can prove that his ex-wife is covering up their daughter's myriad addiction problems.

He's got her on tape, he says!

"Dina is saying that I'm lying here - that Lindsay doesn't have a problem and that she's okay," Michael naturally lamented to the New York Daily News.

"But I have proof that Dina has told me Lindsay is on death's doorstep, that she doesn't have much time left. There have been frantic calls about this."

"And I'm going to prove that Dina is the liar, not me."

The whole world is about to hear it, too. Michael is set to air his ex's dirty laundry, via numerous voicemail messages, on Entertainment Tonight Monday.

Michael says he'll do "whatever it takes" to get Lindsay back on track. "I want her off prescription medication," he insisted. "I'm not going to stop until then."

"As the mother of my kids, I won't slam Dina personally," he said.

"But she has expressed to me that Lindsay is in dire, dire need of an intervention. And Lindsay needs to see that her mother is either lying to me or lying to her."

His recent public rant on Maury Povich and later on Access Hollywood in the past week alone - have left Lindsay quite unmoved. Will this stunt be any different?

We wouldn't expect it. Especially not with comments like this from pop:

"Dina says positive things about Samantha [Ronson] to Lindsay," says Lohan, "but then when Dina talks to me, she blames Lindsay's downfall on the Ronsons."

"If Dina and her cohorts want to keep lying, I could [keep exposing her] for a year - on many different subjects," Michael said, pulling his best Levi Johnston.

"My lawyers told me to keep every single conversation - and I did."