'What is wrong with you?' Weiner answers O'Donnell

Democratic NYC mayoral candidate joined MSNBC's Lawrence O'Donnell for his last television interview the night before the Democratic primary election. O'Donnell had one big question for him, asking the disgraced former congressman, "What is wrong with you?"

The conversation got more combative after that.

Weiner continued his conversation about running for the mayoral seat and continuing a career in politics with O'Donnell. "Bigger guys than you have been trying to knock me down," Weiner said on MSNBC's The Last Word. "But I'm still here."

Watch the web exclusive below.