I'd like to point out that RT generally does their research and has a bias very far removed from Fox News.
At the same time, that seems a little weak, especially because you have the a few factors mentioned above.
The "Skew" factor: Some people just vote to troll the poll, mostly because they see it as a waste of time.
Reporter Bias: RT Times, regardless of what anyone wants to say, is extremely biased against the US government, as well with any governments that the US supports. Going to the original poll eliminates this issue, so most arguments will be coming from here.
Time Based Bias: The poll was conducted during a few "scandals" that went nowhere, placing it in a time where people suspected that the government was abusing it's power
Sample Size and Representation: Though they used a random sample, the fact that the sampled number is small means that any bias in the original sampling is amplified. At the very least, a population of a couple hundred million (since only adults were polled, as only voters were polled) needs a couple thousand to be a more representative sample.
To add on to this, we need to see what other options were offered and their respective levels. We have
Disagree, totaling 47%,
Neither , totaling 18%, and
Unsure, with 5%. 1% refused to answer. While one can assume that these are generalizations that are interpreted by the pollsters, the fact is that 70% of the country still is against armed revolution, ignoring other bias growing the pro-revolt side. With the margin of error 4.3%, I think it is safe to say that a Majority still follow this resolution.
Question Wording: The Question asked was worded;
"In the next few years, an armed revolution might be necessary to protect our liberties"
The question creates an image in the mind of the reader that it is a patriotic cause, rather than the more neutral
"In the next few years, an armed revolution might be necessary to stop government encroachment on liberties"
which at least removes the personal identifier "our" and the hot word "protect" which implies an active entity deliberately going after liberty.
(Note: Neither is very unbiased, but with the topic it is difficult to avoid)
[/statisticsrant]
Anyway, like I said, I don't trust RT, and I haven't (and won't) spend the time looking at the source of the poll to determine levels of Bias against the government.