The bill falls short, but vote shows cracks are starting to appear in Republican support for the US-Israel war on Iran.Three Republican senators have joined Democrats in the United States Senate in voting to advance a bill to limit President Donald Trump’s ability to strike Iran without congressional approval.While the bill ultimately fell short in a 50-49 tally on Wednesday, the vote showed that cracks in the support for the war are starting to show in Trump’s Republican Party.Recommended Stories list of 3 itemsend of listIt was the seventh such vote since the start of the war, and it received the highest level of support so far.Democratic Senator John Fetterman – a pro-Israel hawk – sided with the Republican majority, single-handedly helping Trump’s party block the bill.Republican Senator Lisa Murkowski broke ranks with her own party for the first time and voted in favour of the War Powers Resolution. Susan Collins – who is facing a tough re-election battle in Maine – voted for the resolution for the second time.Rand Paul, a Kentucky libertarian who has consistently voted to curb the president’s war authorities, was the third to vote for the resolution.Trump never sought congressional authorisation to go to attack Iran, although the US Constitution gives lawmakers the sole authority to declare war.Since the start of the conflict, Democrats have repeatedly put forward bills under the War Powers Resolution of 1973 to limit Trump’s authority to order the US military into hostilities without auth …