Angus MacDonald won in Inverness, Skye and West Ross-shire where the declaration was delayed by two recounts.
The SNP candidate has already conceded defeat, with the seat expected to be won by the Lib Dems.
The defence secretary writes to Labour and the SNP over claims about a trip arranged with the military.
An SNP MP is ordered out of the Commons after he refused to stop protesting as MPs began a vote on the UK Internal Market Bill.
MPs and peers are at loggerheads over plans to regulate trade between the four nations of the UK.
