ET hour across 12 networks, according to Nielsen.
That first night drew 17 million across 11 networks.
Speakers during the hour included Amber Rose and Sean OBrien, the president of the Teamsters.
Donald Trump and his running mate, J.D. VanceJoe Raedle/Getty Images
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The hour also saw the first appearance of Trump together with J.D.
Vance, after he selected the Ohio senator to be his vice presidential running mate.
Among major networks, Fox News topped in the 10 p.m.
Earlier in the evening, NBC News and MSNBC featured Lester Holts interview with President Joe Biden.
That interview drew an average of 4.8 million viewers on both of those networks.
NBC also won the timeslot at 9 p.m.
ET against broadcast competition.
The interview also averaged 861,000 in the adults 25-54 demo across both networks.
