(CNN) Vice President Mike Pence was told about the July 25 call between President Donald Trump and Ukrainian President Volodymyr Zelensky the day after the call, according to two sources familiar with the matter.

However, the sources would not say whether in that conversation the vice president was told what Trump said about the Bidens.

A third source says the vice president was not briefed on Biden, but did say information about the call was made available to him.

The three sources familiar confirm Pence was provided a transcript of Trump's call with Zelensky in his briefing book the day after the call.

"He may or may have not read it," one source said. But the source said Pence did not raise the Biden allegations with Zelensky during their meeting.

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