Obama, Democrats' Fundraising Raised $181 Million In September

No, he actually hasn't. 

What he's said (and it's been a one-time comment so I wouldn't take it to the bank) is so typically 'Obamaesque' - “I think we need to seriously consider mobilizing a constitutional amendment process to overturn Citizens United, even if the amendment process falls short, it can shine a spotlight of the super PAC phenomenon and help apply pressure for change".

There's nothing serious or determined in that.  It's like, "We should think about getting around to painting the house one of these days".
Read the Article at HuffingtonPost