At WGBH studios in Brighton tonight, Boston mayoral candidates Marty Walsh and John Connolly will face off in the second debate at 7pm ET and you can watch the live stream of the entire event below. Both municipal hopefuls still have plenty to prove in terms of politics and policy but their unconditional love for The Hub remains unwavering and unchallenged.

But with to contenders nearly identical in how they view the future of Boston, the question remains which will act as the best vehicle for achieving those goals. Each candidate is in favor of public school reform, a reinvigorated development scene, means of curtailing environmental and energy follies, and diversification through the ranks of city government, amongst a bevy of other issues.

Check out the second Boston mayoral debate between Marty Walsh & John Connolly at 7pm ET here:

Live streaming video by Ustream

After Walsh and Connolly both played it genially the first time around, it’ll be interesting to see if one employs a more aggressive approach. Connolly has certainly made it clear that he doesn’t want campaigning to turn negative, and likely neither does Walsh, but a political action committee in support of the State Representative and former union leader has done just that, though Walsh has not addressed the concerns outright.

Also an agenda topic for tonight will be the environment. The latest mayoral poll produced for the Environmental League of Massachusetts shows Walsh closing in on Connolly’s lead and that potential voters want to hear where the two candidates stand on environmental issues.

Of course, if both candidates continue to steer the course of cordiality it won’t be a surprise for anyone. As friends and colleagues for a number of years, neither candidate is going to drag the other’s name through the mud and their willingness to stay relatively neutral in that respect has been a breath of fresh air for Boston politics. But that’s not to say one won’t try to leverage their popularity at the other’s expense.

For those tuning in, be sure to leave your thoughts in the comments section below.