From this:

[Massachusetts gubanatorial candidate] Lt. Gov. Kerry Healey opened a fresh wave of attacks on [fellow candidate] Deval Patrick over the issue of illegal immigration yesterday, launching a TV ad and appearing at a pier in Charlestown to call for illegal immigrants to be denied driver's licenses.

Healey said Patrick's support of driver's licenses for illegal immigrants would lead to fraud and abuse...

...The Patrick campaign said Healey's claim was moot, because a federal law passed last year prohibits the state from issuing driver's licenses to illegal immigrants...

Huh? As discussed in the same article, Patrick supported that which he calls moot earlier this year, and he even supported it just three weeks ago in their big "debate".

Healey also opposed granting in-state college tuition to illegal immigrants, which Patrick, the Democratic nominee, supports. A legislative proposal to grant the tuition break also requires the students to graduate from high school in Massachusetts.

She could end his candidacy and even have some impact on his future career if she would use the right phrasing to explain why that's a bad thing.