Last week, Massachusetts Treasurer Tim Cahill lost his running mate in the race for governor. Former Republican state legislator Paul Loscocco had joined with the Democrat-turned-independent earlier this year to run on a ticket to the right of the GOP on some key issues. But Loscocco just left the ticket and endorsed Republican gubernatorial nominee Charlie Baker.

So this week, the Boston Herald is reporting that Cahill is launching a $1 million negative ad campaign. His targets will presumably be both Baker and Democratic Gov. Deval Patrick. Patrick narrowly leads in most polls — though sometimes within the margin of error — and might be more likely to lose if the center-right vote could be consolidated. Presumably, some swing voters were waiting to see whether Baker or Cahill had a better chance of taking the incumbent down.

Cahill’s Republican campaign support, including head honcho John Weaver, has similarly bailed. It remains to be seen whether he can become competitive again with the time that remains. I’ve written about Cahill’s candidacy twice before on the main site.