If DUP revolt with single market issue as pretext then there would be grounds for a parliamentary majority behind no confidence vote, also given there might be at least some Tories willing to revolt on such a serious issue.
Triggering general election, pausing timeline on Brexit.
https://twitter.com/NicolaSturgeon/status/937960116921536512
Love it, but not sure how this is meant to play out? Vote of no confidence?