If you are afraid of the internet then use handwritten correspondence or faxes. If you are afraid of a 'bugged' telephone, use pre-paid telephone calling cards.
If you were stupid enough to vote for that communist, leave your guns and ammo for a smarter man or woman, and get the hell out. If you whizzed and moaned that we all didn't like him because of this or that or something else and you thought we were wrong and created dissention within our ranks - get the hell out.
For those of us on our side (1) trust no democrat, liberal or unknown with questionable loyalties, unless you personally know this person to be willing to join with you and not compromise either your mission or location. Band together in small groups of 3 or 4 and use little 'public' communication but lay out a well organized plan as to how carry out the various aspects of your operations. Good prior preparation is the key to success.
Develop coded phrases and vary the locations of your gatherings; do not set patterns. Elect one of your group to lead your operations and develop plans for each aspect of each operation you intend to conduct. Train and equip yourselves, stockpile your supplies and be prepared.
Do it now, because that sob ain't gonna wait. Remember that his 'executive orders' carry the force of law, and his civilian security force carries the force of the gun and when you put the two together you get that nasty little bunch of brown shirt socialists that Italy saw during WWII. Just up the european continent in Germany, they called them Nazis and even further up they were called communists. I do not give one loose squat about arguing the nature of their mission or philosophy, the sole focus of their purpose is to disarm you and leave you subject to the government.
I'm not saying that a bunch of 60-70 y/o Vietnam veterans should go lay in frozen foxholes coveting their warm Ensure while waiting to waylay the next convoy, but we can sure advise the younger men and women how to go about it. And let's not forget those famous 'police buy back programs' - might well be one good place to 'stock up' if you empty out their armory at the same time you 'restore firearms ownership' to civilians
Now, when is he going to act first and what will he do - I doubt he will wait for a natural disaster to strike so he can repeat new orleans but that would be his first legal opportunity to bring in his federal troops, and if you see them carrying rifles instead of unloading food and medical supplies you are already too late. He can use any excuse he wants but the primary excuse will be that the military have been brought in to protect the citizenry. Look for something he can use as an excuse during the winter - some sort of 'snow emergency' or weather emergency, such as when northern nys was frozen over for 2 weeks a couple of years back.
BTW - new metal 30 rn AK mags are goin' for $10 a pop in the Shotgun News.