They are included. The US typically runs a trade deficit in goods and a surplus in services, but it can change [0].
0: https://tradingeconomics.com/united-states/balance-of-trade/...
The Trade Balance definition is murky depending on who you ask, it's better to use the Current Account Balance that includes trade balance amongst other things as an indicator of net flows. The Current Account does explicitly include goods & services, and the US is running a hefty deficit today.
Yes it includes services and we still run a deficit. Trump's definition though does exclude services which leads to the confusion. In services on its own we run a surplus but it doesn't make up for the larger goods deficit
I read quite often claims that state if services were included, the US would be in a trade surplus.
But in my own rudimentary research, it appears services are in fact included.
Can someone confirm.