gaven newsome, thanks for your time tonight. >> thanks for having me. >> thanks for joining us. "msnbc live" continues next. >>> right now on msnbc 11 republican presidential candidates are gathering at the ronald reagan presidential library getting ready to square off in the second major gop primary debate. we are now just hours away from one of the biggest moments so far in the 2016 race. all eyes, of course, are on donald trump. the republican front runner giving a hint today that he is interested in using tonight's debate to show a different side of himself. >> i think i can tone it down a little bit when pressed. i think i have a great temperment. you couldn't build a great business like i built if you didn't have great temperment. i think sometimes i can tone it down and hit a little less hard. >> but others sound like they plan to hit plenty hard. scott walker's campaign telling nbc if he gets the chance to mix it up he's going to. since the last debate walker has fallen from being one of the top contenders to the bottom of the polls. all 11 candidates on that stage tonig