Massachusetts Republican candidate for governor Charlie Baker reiterates his support for marriage equality in a new ad released Saturday.

The 2-minute ad's release coincided with the tenth anniversary of same-sex marriage in Massachusetts.

(Released: Massachusetts celebrates ten years of gay marriage.)

In the ad, Baker and his brother Alex discuss the moment Alex came out gay to his brother.

Charlie Baker remembers his brother asking, “What would you say if your brother told you he was gay?” and him answering, “I'd say it's no big deal.”

Alex, who married his partner 10 years ago, said of marriage equality in Massachusetts: “Ten years has passed since that happened. And Massachusetts hasn't fallen apart, the institution of marriage in Massachusetts isn't crumbling because of gay marriage, and part of me just keeps hoping that the rest of the country can look at Massachusetts and say, you know, it isn't that big a deal.” (The video is embedded on this page. Visit our video library for more videos.)

In his 2010 unsuccessful bid for governor, Baker chose Richard R. Tisei, an openly gay lawmaker, as his running mate. This year, Tisei is running for Congress with the support of House Speaker John Boehner.

(Related: John Boehner says 'I do' to gay candidates Richard Tisei, Carl DeMaio.)