(WASHINGTON) -- The Twitter account @BarackObama on Thursday night retweeted Yoko Ono’s picture of John Lennon's bloody glasses from the day he was murdered.

The arresting photo, which includes text that more than a million people have been killed by guns since Lennon was shot in 1980, has been retweeted more than 11,000 times since it was posted on Wednesday.

A retweet by the account associated with President Obama forwarded it to his more than 28 million followers.  Retweets aren’t always endorsements in Twitter etiquette, but Ono’s activism comes at a time when Obama and Democrats’ push for more gun control after the Sandy Hook tragedy seems to be struggling.

A proposed assault weapons ban was stripped from a bill headed to the Senate floor.  And that bill, which would universalize background checks, doesn’t have the bipartisan support many backers would like.

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