Poor Cory Bernardi. The conservative, anti-marriage equality Senator just marked his 20th wedding anniversary all alone and far from home, in New York where he's flying the flag at the United Nations for what he's described as "common sense".

Clearly feeling a little sorry for himself, Bernardi turned to Twitter to cheer himself up the only way he knows how: By trolling LGBT people who are fighting for the right to celebrate any wedding anniversary at all.

Liberal senator Cory Bernardi. Credit:Alex Ellinghausen

Dialling up the sarcasm, Bernardi tweeted: "I know the joy it will bring the twittersphere that today is my 20th wedding anniversary.

"I can't wait to read your messages," he added, in case his followers didn't immediately recognise the tweet as bait.