Is it true that Republicans oppose gun control while all or most Democrats favor gun control?

In 1994, when the Assault Weapons Ban was passed as a key part of H.R. 3355, the author of The Violent Crime Control and Law Enforcement Act of 1994, to which it was attached, was a Democrat from Texas. (Earlier before editing this post, because of my own ignorance, I misidentified Jack Brooks as a Republican. Mea culpa.)

Because 95.7% of the Republican Senators voted in favor the AWB when the vote was taken, although there is no record of the House votes where only a voice vote was taken in the House of Representatives, no one can seriously claim that all or most of the Republican Representatives were opposed to the passage of the AWB.

The 95.7% of the Republican Senators who voted in favor of the AWB include Richard Shelby (AL), Frank Murkowski, Ted Stevens (AK), JOHN MCCAIN (AZ), Christopher Bond (MO), Conrad Burns (MT), Judd Gregg, Bob Smith (NH), Pete Domenici (NM), Alfonse D'Amato (NY), Duncan Faircloth, Jesse Helms (NC), Don Nickles (OK), Robert Packwood (OR), Arlen Specter (PA), John Chafee (RI), J. Thurmond (SC), Larry Pressler (SD), Kay Hutchison (TX), George Brown, Ben Campbell (CO), William Roth (DE), Connie MAck (FL), Paul Coverdell (GA), Larry Craig, Dirk Kempthorne (ID), Daniel Coats, Richard Lugar (IN), Charles Grassley (IA), Bob Dole, Nancy Kassebaum (KS), Mitch McConnell (KY), William Cohen (ME), Thad Cochran, Trent Lott (MS), Robert Bennett, Orrin Hatch (UT), James Jeffords (VT), John Warner (VA), T. Gorton (WA), Alan Simpson, Malcolm Wallop (WY).

Their 1994 position was consistent with Nixon's 1969 position, who told the journalist William Safire at that time that "he favored making handguns illegal and requiring licenses for hunting rifles."
http://bsalert.com/artsearch.php?fn=2&as=2471&dt=1

Their 1994 position was consistent with Bush-41's 1989 position:


Their 1994 position was also consistent with Reagan's 1991 position:


In 2008, when three Republican Representatives sponsored a Bill to extend the AWB, and acted alone with no Democratic Sponsor, the following Democrats signed a letter to AG Holder to express their strong opposition to extending the AWB:
Mike Ross (D-AR), Tim Holden (D-PA), Jerry Costello (D-IL), Jim Matheson (D-UT), Sanford Bishop (D-GA), John Dingell (D-MI), Marion Berry (D-AR), Nick Rahall (D-WV), Gene Green (D-TX), Chet Edwards (D-TX), Ciro Rodriguez (D-TX), Gene Taylor (D-MS), Bart Stupak (D-MI), Collin Peterson (D-MN), John Tanner (D-TN), Allen Boyd (D-FL), Dennis Cardoza (D-CA), Eric Massa (D-NY), Steve Kagen, MD (D-WI), Betsy Markey (D-CO), Paul Hodes (D-NH), Ron Kind (D-WI), Peter Welch (D-VT), Leonard Boswell (D-IA), Tim Ryan (D-OH), Walt Minnick (D-ID), John Boccieri (D-OH), Joe Donnelly (D-IN), Tom Perriello (D-VA), Earl Pomeroy (D-ND), Ben Chandler (D-KY), Martin Heinrich (D-NM), Debbie Halvorson (D-IL), Travis Childers (D-MS), Tim Walz (D-MN), Peter DeFazio (D-OR), Solomon Ortiz (D-TX), Paul Kanjorski (D-PA), Rick Boucher (D-VA), Mike McIntyre (D-NC), John Murtha (D-PA), Bart Gordon (D-TN), Zach Space (D-OH), Alan Mollohan (D-WV), Lincoln Davis (D-TN), Artur Davis (D-AL), Charlie Melancon (D-LA), John Barrow (D-GA), Christopher Carney (D-PA), Dan Boren (D-OK), Parker Griffith (D-AL), Charlie Wilson (D-OH), Heath Shuler (D-NC), Stephanie Herseth Sandlin (D-SD), Jim Marshall (D-GA), Jason Altmire (D-PA), Larry Kissell (D-NC), John Salazar (D-CO), Brad Ellsworth (D-IN),
Frank Kratovil (D-MD), Glenn Nye (D-VA), Bobby Bright (D-AL), Ann Kirkpatrick (D-AZ), Joe Baca (D-CA).
http://bsalert.com/artsearch.php?fn=2&as=2471&dt=1