Is Virginia Gov. Bob McDonnell officially in the running to be presumptive Republican presidential nominee Mitt Romney’s vice-presidential pick? Judging from what McDonnell said on WTOP earlier today, it sounds like his chances of being tapped as Romney’s No. 2 are as good as ever.

In an interview with the radio station, McDonnell was asked if he was currently being vetted to join the GOP ticket. It’s hardly the first time his name has come up in the process. McDonnell is, after all, a charismatic, southern and relatively successful governor who, while popular, wouldn’t completely outshine the charisma-challenged Romney. He also endorsed Romney back in January and has spent time on the campaign trail with the former Massachusetts governor.

But whereas McDonnell previously said he wasn’t actively seeking the vice presidency, his response today on WTOP was altogether shifty. “I’m not discussing the vice presidential vetting process,” he said. “You can address those questions to the Romney campaign.”

The Romney campaign, recently, has tried to remain tight-lipped about its vice-presidential vetting process, but with limited success. After much prodding from reporters last week, Romney admitted that his campaign is seriously considering Florida Sen. Marco Rubio.

As much as McDonnell has resisted the speculation in the past, his caginess today has only stoked the rumors. To say nothing of recent tracking polls that show that Romney and President Obama continue to be within a few percentage points of each other in the race for Virginia’s 13 electoral votes. And on the governor’s schedule today: A D.C. luncheon where he will be appearing on behalf of the Romney campaign.