Meghan McCain slams 's 'pathetic life' for spending his weekend attacking ...

Meghan McCain slammed President Donald Trump on Monday for having a 'pathetic life' for spending his weekend tweeting criticism of her father, the late Sen. John McCain.

'He spends his weekend obsessing over great men, because he knows it, and I know it, and all of you know it, he will never be a great man,' McCain said on ABC's 'The View.'

'My father was his kryptonite in life. He was his kryptonite in death,' she added.

Meghan McCain escalated her response to President Trump's criticism of her late father, saying the president has a 'pathetic life'

Meghan McCain escalated her response to President Trump's criticism of her late father, saying the president has a 'pathetic life'

President Trump

John McCain

President Trump attacked the late Sen. John McCain twice this weekend on Twitter

McCain, who is a co-host of the ABC program, said when she saw the president's tweets she thought that 'your life is spent on your weekends not with your family, not with your friends, but obsessing, obsessing over great men you could never live up to.'

'That tells you everything you need to know about his pathetic life right now,' she added. 'I genuinely feel bad for his family. I can't imagine having a father that does this on the weekends.'

Trump attacked the late senator twice this weekend on Twitter, focusing on McCain's ties to the infamous Steele dossier that contains the unverified allegations the Russians have blackmail material on the president. 

'So it was indeed (just proven in court papers) 'last in his class' (Annapolis) John McCain that sent the Fake Dossier to the FBI and Media hoping to have it printed BEFORE the Election. He & the Dems, working together, failed (as usual). Even the Fake News refused this garbage!, the president wrote on Sunday.

McCain was actually fifth from the bottom of his class at the Naval Academy. 

On Saturday, Trump said McCain leaking the 'dirty dossier' was 'dark stain' on his legacy. 

'Spreading the fake and totally discredited Dossier 'is unfortunately a

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