BostonGlobe.com Political Headlines - February 22, 2013

• Edward Markey holds firm on his analogy to slavery ruling: Markey refused to back down from comments he made that seemed to compare the Supreme Court's ruling on campaign finance to the Dred Scott decision. Globe politics reporter Noah Bierman outlines.

• Ex-Navy SEAL Gabriel E. Gomez has low profile in Senate race: Eleven days after Gomez emerged as a candidate and 67 days before the primary, the Republicans' fresh face ­remains largely a mystery. Globe politics reporter Stephanie Ebbert profiles.

• Gomez sought appointment to Senate: The Cohasset businessman who is running as a Republican in the US Senate special election, lobbied Democratic Governor Deval Patrick to give him the temporary appointment. Globe State House bureau chief Frank Phillips reports.

Ed Markey: A campaign snapshot: Markey is a committed prograssive with a long record of accomplishment, but hyper-cautious and wordy, he often seems like a throwback to another era. Globe columnist Scot Lehigh writes.