WASHINGTON, May 7 (Reuters) – George Soros is pledging $2 million to two outside groups supporting progressive causes and helping President Barack Obama’s re-election campaign and other Democrats running in November, a Soros advisor said on Monday.

Soros adviser Michael Vachon said in an email that the billionaire investor is concentrating his giving on grassroots organizing and “holding conservatives accountable for the flawed policies they promote.”

Vachon said Soros has pledged $1 million to American Bridge 21st Century, a “super” political action committee, or Super PAC, that is largely focused on research and tracking Republican candidates.

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