The controversial clause had already been found to be unlawful and was opposed by Northern Ireland parties and victims' groups.
Sir Keir says President Trump criticised the UK's Chagos Islands deal in order to exert pressure on the PM.
Behind the scenes, Sir Keir had been coming under greater pressure to change his approach to the president.
The parliamentary commissioner for standards said Farage had apologised after missing the deadline for registering interests.
The government has announced the details of its long-awaited Warm Homes Plan which promises to cut energy bills.
Conservative MS James Evans allegedly told a senior Tory he was thinking about defecting.
The US president says it is "another in a very long line of National Security reasons why Greenland has to be acquired".
Critics of the project - including some Labour MPs - warn it could pose a security risk.
Trump has criticised the deal under which the UK keeps control of the joint UK-US Diego Garcia military base.
James Evans confirmed in a statement that he was being ousted from the Conservative party.
BBC chief political correspondent Henry Zeffman shares his analysis.
The government said it expected schools to be "phone-free by default" as a result of the announcement.
James Evans has been sacked as the shadow health secretary and kicked out of the Conservative party.
The prime minister has built his foreign policy around being seen as a trustworthy ally of the US president.
The government says the industry will have "nowhere to hide", but campaigners say the reforms do not go far enough.
Sir Keir Starmer said the situation was "very serious" and that right approach was through "calm discussion".
All 116 Tory MPs have been ordered to a meeting on Monday night, after Nigel Farage imposed a deadline on further defections.
The prime minister is seeking to downplay how he intends to react to Trump's threat of tariffs.
Europe is weighing up how to counter the US president's move against some of America's closest allies.
BBC chief political correspondent Henry Zeffman has this analysis.