Last week, Rudy Giuliani, Trump's ex-personal attorney, canceled his meeting with the House Jan. 6 committee after months of negotiations, because his request to record the proceedings was rejected.
Giuliani was subpoenaed because of his alleged role in trying to convince state legislators to overturn the 2020 election results, as well as his alleged contact with Trump and Congress concerning strategies for delaying or overturning the results.
Giuliani is a media hound and his last-minute decision to renege on his agreement is likely another grab for attention. The committee might want to consider letting him turn the cameras on, though, considering how valuable his testimony could be and his propensity for revealing too much.
Those subpoenaed to speak before the Jan. 6 Committee are well within their rights to skip it. Trying to criminalize dissent in the US is merely political theater.