No it's not.

If you didn't take any steps afterwards then there is no law broken.
If they had followed thru on his orders then they would have been possibly guilty of a criminal conspiracy.
However, it's still debatable that he even gave the order in the first place, considering the fact that the FBI tried to shut off the cameras when they started the raid. If anything, they were attempting to obstruct justice, not Trump:
By Wendy N. Whitman Cobb
Though thinking about committing illegal acts is not illegal, conspiracy laws can only be enforced when one takes a step beyond merely planning the act and toward execution of the crime. Eugene Dennis, General Secretary of the Communist Party USA, and other members of the party were convicted of conspiring to teach or advocate the violent overthrow of the government. (Photo by the US Library of Congress, public domain)
The application of conspiracy laws requires a tacit agreement among members of a group to commit a crime. Such laws allow the government to charge a defendant regardless of whether the planned criminal act has been committed or the possibility of the crime being carried out successfully.
Conspiracy laws can only be enforced after individuals take steps beyond planning a crime
It is not illegal to think about committing illegal acts — such as in the case of civil disobedience — as any law that would criminalize the mere thought or suggestion of committing an illegal act would be a free speech violation.
Conspiracy laws can only be enforced after individuals take an initial step beyond planning and toward execution of an illegal deed. An individual who has agreed to participate in a crime is not required to know everyone involved in the plot in order to be charged with conspiracy.
There are concerns about conspiracy laws interfering with First Amendment rights by allowing governments to crack down on those who disagree with the positions of the state.
www.mtsu.edu