When election returns stream in from across the country on Nov. 6, Mitt Romney and his campaign team will be ensconced at the Boston Convention and Exhibition Center, according to a campaign official who asked not to be identified.

The night could be a long one at the sprawling South Boston facility, judging from national and swing-state polls that continue to show an extremely tight race. As such, the eyes of the nation will be trained on Boston for a victory or concession speech from Romney.

Although Romney makes his home in Belmont and keeps his campaign headquarters in Boston, the former governor is not expected to capture the state’s 11 electoral votes. An average of recent polls by RealClearPolitics showed President Obama leading Romney, 54.7 percent to 39.7 percent, in Massachusetts.