Why does Ian Blackford now see Section 30 as the only legal route to indy?

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The National
Why does Ian Blackford now see Section 30 as the only legal route to indy?

SNP Westminster Leader Ian Blackford rightly stated in The National recently that “we need to exit the UK as soon as possible”, and never a truer phrase was said. However, a headline around the same period offered a quote from Mr Blackford that “we must not break the law”. This apparently was a reference to those both within the SNP and wider Yes movement who advocate the use of a parliamentary mandate as a mechanism for achieving independence rather than…

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The National
Why does Ian Blackford now see Section 30 as the only legal route to indy?