With the news that the vice presidential slot may be filled and not by Republican Chris Christie, the New Jersey governor explained what his reaction will be if Donald Trump rolls out Indiana Gov. Mike Pence.

'I mean, obviously, I'm a competitive person,' Christie told MSNBC's Nicolle Wallace, a Republican analyst for the network. 'So I'm not going to say it won't bother me, if I'm not selected. Of course it bothers you a little bit. 'Cause if you're a competitive person, like I am, and you're used to winning, like I am – again, you don't like coming in second, ever.'

While Trump, the presumptive Republican nominee, won't official roll out his vice presidential pick until tomorrow in New York, Roll Call and then other outlets reported that the conservative Indiana governor was it.

'No matter what phone call he makes to me today – I will take a deep breath and prepare for tomorrow,' Christie said.

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New Jersey Gov. Chris Christie went on MSNBC as the news was leaking out that Donald Trump had chosen Indiana Gov. Mike Pence for veep and said that he doesn't 'like coming in second'

Presumptive Republican nominee Donald Trump (left) had narrowed his list down to several choices, including New Jersey Gov. Chris Christie (right) who endorsed The Donald early and has been a key adviser ever since

So far the official word from team Trump is mum.

Yesterday The Donald spent time with Pence and former Speaker Newt Gingrich, who said on Fox News last night that he believed that the choice was down to two – Pence and Gingrich.

But by gauging Christie's reaction to the news that was slipping out, the New Jersey governor, who endorsed Trump early and is now in charge of the Republican's transition if he wins in the fall, believed he was still in the running too.

Roll Call and then other outlets reported that Donald Trump had settled on Indiana Gov. Mike Pence (pictured) for vice president

Pressed to verify the reports that Pence was Trump's guy, Christie denied to Wallace that he knew the likely nominee's pick.

'I swear I don't know. I don't know,' he said.

When Wallace brought up the fact that Pence had first backed Texas Sen. Ted Cruz before throwing his support behind Trump, Christie shrugged it off.

'Donald Trump wasn't my first choice for president. I was, right?' Christie said. 'So I don't think we should hold that against Mike.'

Christie called Pence a 'good guy' and 'smart.'

'You'd have to ask him why he endorsed Ted Cruz at the time that he did. I don't know. But I don't think that should disqualify you,' Christie said.

More broadly, Christie said he wasn't advising Trump on the running mate decision because he'd simply be too biased toward himself.

'I'm not going to go in there and – and – and advise him to pick someone else,' Christie admitted.

Christie added that he didn't want a hand in the veepstakes because the way he comported himself could 'color' Trump's view of the governor once the issue was settled.

'And what matters most to me is helping him get elected president and then, if he is, to make sure that he's a successful president for our country and the world,' Christie said.

'Cause we need one and those are my priorities,' the governor, who also ran for president this cycle, continued.

'And I think, as I get older, those things rise above ambition,' Christie added.

But Wallace pointed out the political hits that Christie had taken for being at Trump's side so quickly after he walked away from the race.

'Can you understand that, that some of your supporters feel like this is owed to you, that no one has taken more lumps for backing him when they did than you?' Wallace mused.

Christie put that idea to bed quickly.

'No. No one's owed the vice presidency of the United States,' Christie said.

The governor even noted that he would say no to Trump if offered a position he didn't want in the administration.

After his initial comments, Christie stayed the steadfast soldier for Trump, ribbing the Bush family for sitting this election out.

Jeb Bush sat down with Wallace earlier this week and said that he wouldn't be voting in November.

The other members of the Bush clan aren't publicly supporting Trump and won't be at the convention next week in Cleveland.

'Our party has spoken,' Christie noted, saying he wouldn't be criticizing the Bush family before criticizing the Bush family.