"A rational observer may have brushed off Trump’s tweets as hyperbole, but Mr. Sayoc took them to heart," his attorneys wrote.
Eric Krieg, a right-wing blogger from Indiana, admitted to mailing a pipe bomb to an attorney who had filed a defamation lawsuit against him.
Kathy Griffin criticized Twitter for allowing the suspected pipe bomber to stay on its platform.
But fewer than one-quarter say he discourages his supporters from acting violently.
The "Last Week Tonight" host slammed the network for airing "false flag" conspiracy theories.
The 56-year-old South Florida man was arrested Friday in connection with more than 10 likely pipe bombs mailed to people critical of President Donald Trump.
A suspect package from Greece found aboard a courier company plane rerouted to Bologna airport was intended for Italian Prime