>>14
A lot of the gun control legislation the democrats have passed (or tried to) would have or did violate the constitution in more ways than just the 2nd amendment. A good deal of it infringes upon the other amendments in addition to the 2nd.
For example, BOTH the Mcarthy Gun Grab AKA HR.1415 AS WELL AS the Brady Bill violate BOTH the 2nd and 10th amendments.
http://www.gunowners.org/a090606.htm
http://usinfo.state.gov/usa/infousa/facts/funddocs/billeng.htm
This legislation was largely supported by the democrats, and opposed by the republicans. Many democrats and gun control advocates still do support it.. in fact, I can't think of one at the moment who doesn't.
Further, many of the examples you pointed out, such as the Patriot act, etc, were all supported by the democrats as well as the republicans. Don't believe me? Take a look at the ACTUAL SENATE VOTE for yourself:
http://www.senate.gov/legislative/LIS/roll_call_lists/roll_call_vote_cfm.cfm?congress=107&session=1&vote=00313
The Encumbent Protection Plan (HR.2183) passed in 1998 (again, largely by the democrats) infringes upon political speech, violating the 1st amendment of the Bill of Rights.
http://usinfo.state.gov/usa/infousa/facts/funddocs/billeng.htm
The Mcarthy Amendment, which thankfully failed in 1999, would have violated the 4th amendment, giving the BATFE unlimmited searching power at gun shows and other private events.
The Mcollumn Amendment to HR.2122 would violate the 2nd and 10th amendments.
The Conyers Amendment to HR.2122 would violate the 2nd 4th, and 10th amendments, expanding the already obviously unconstitutional Brady Bill, giving the BATFE near unlimmited searching power, and banning certain ammunition clips.
HR.417, another bit of legislation largely supported by the democrats, would have restricted the freedom of speech of political groups - hindering their rights to talk about candidates voting records.
The dems then did not support the Pickering Amendment of 2002 which would have exempted certain political groups from the draconian provisions in the Incumbent Protection Act that violated the 1st amendment. Further, in voting against it, they turned the 2nd amendment on its head, declaring that the right to keep and bear arms is a right reserved for government forces (i.e. police, military, national guard, etc) and NOT for private citizens.
Then we have HR.2356.. another bit of encumbent protection legislation that would further restrict the free speech rights of various political organizations 60 days prior to elections. For political groups, speaking in ways that would be deemed 'electioneering', or simply critisizing a given politician's record would result in harmful action to their current tax related status.
As for 5th amendment rights, the gun owners of Louisiana being deprived of their firearms without compensation could be seen as a violation of numerous parts of the constitution and Bill of Rights including amendments 2, 4, 5, and 14. A solid core of the most extreme democrats in our government essentially worked to keep these confiscations happening by opposing legislation aimed at stopping them.
http://www.guncontrolkills.com/?p=44
This is just what I could come up with after only a small amount of poking around.