Lawmakers need to keep digging into President Trump's unfounded wiretapping allegations to understand what exactly he meant by them, Senate Majority Whip John Cornyn John CornynAirline job cuts loom in battleground states Senate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll MORE (R-Texas) said Tuesday.

"I think we still need to figure out what the president was talking about," Cornyn said on CNN's "New Day." "When he talked about wiretapping, we know that President Obama personally would not have done that."

The Texas senator's comments came a day after FBI Director James Comey told the House Intelligence Committee that there was no evidence to suggest that Trump's presidential campaign was surveilled by former President Barack Obama Barack Hussein ObamaThe Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon Trump appointees stymie recommendations to boost minority voting: report Obama's first presidential memoir, 'A Promised Land,' set for November release MORE. Top Republicans in the House and Senate intelligence committees have also said that there's no evidence Obama ordered a wiretap.

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In a series of tweets earlier this month, Trump claimed that he was wiretapped by the Obama administration, but provided no proof to back up the explosive accusation.

Cornyn said that Trump's allegations were not true on the surface, but may have another meaning, suggesting that the president could have been referring to incidental collection of information, in which contacts including members of his campaign team were inadvertently intercepted by intelligence officials surveilling foreign targets.

"I'm not sure exactly how the president is using the language, but, literally, the language cannot be true," Cornyn said.

"But if he's characterizing what we have been seeing reported in the press about listening to the conversations of members of his campaign, like Gen. Michael Flynn, then that would be more understandable."