Hm. Do I think he could get his agendas past Congress, varies on which issue. Now, I don't think he'd have an easy time at all actually changing the laws themselves- he could make things different.
As far as the Federal Reserve- that one's going to be the tough one. We're most likely going to need to change up Congress before that happens. But I know for sure he would push Congress to step in, do their duty, and actually regulate and watch what the Federal Reserve is doing.
Could he personally end the income taxes on the record? No. But he sure as hell could pardon anyone arrested. Making the law ineffective. He could do the same with the marijuana issues and such- just pardon everyone. That would send a real clear message.
Could he bring home all the troops tomorrow- absolutely.
As far as his privatization policies- it's a very Libertarian view.
The simple explanation can be found here
Official Website of the Libertarian National Committee
The fact is that the government is VERY bad at handling money- VERY bad. The "cost" of merely collecting the taxes and "distributing" the help is absolutely ridiculous. 2/3- yes 2/3 of every dollar collected by the government is spent TO COLLECT THAT MONEY. Private non-profit organizations have a better turn over rate from their donations to the amount of money actually handed out. Look at the American Red Cross- 92 cents of every dollar goes DIRECTLY to the programs and services they offer.
Here is an EXCELLENT article about the subject, and about how the poor and people who need help would actually get MORE with less regulation.
http://www.ruwart.com/poverty.lpn.wpd.html
Also, while I agree that corporations are usually very greedy and underhanded- the fact is that in a free market society, if you don't like the service, if you don't like their ethics, if you don't like how they're handling their business YOU CAN GO ELSEWHERE. But when you have the government pretty much taking a monopoly and they're just as underhanded as the corporations (and run by the same people) what's the difference? Except for the fact that people will actually have choice and say in where they put their money.
Now.. the assassination question is a hard one for me to answer honestly... yes. I do believe they would try to assassinate him. David Rockefeller Sr. is ON TAPE saying "Ron Paul is not a problem at this time". Arrogant assholes. Also, sources have said that a Ron Paul assassination is "on the table" if he starts too much of a grass fire... I think there would be a bloody back lash though. Ron Paul has also been asked about this directly and he said that he "is very well aware of the danger he's in" and that "they have killed people for less".