WASHINGTON—Alaska Gov. Sarah Palin has put the “brutal” 2008 campaign behind her and has the next presidential race in her sights, with a flurry of national television interviews and a high-profile appearance at the Republican Governors Association meeting this week. Palin’s stepping-out has been a marked departure for a vice presidential candidate who was held to tightly controlled appearances for much of the fall campaign. She’s indirectly but unmistakably put her name in play as a potential presidential candidate, saying she’ll “plow through that door” if it’s God’s will and conditions are right.