A partisan canvassing campaign is found to be effective in mobilizing voters in the tightly contested 2004 presidential election.                     

Partisan mass GOTV email messages sent by the Democratic National Committee are not found to be effective in mobilizing turnout among registered Democrats.

The differential effect of various messages in five direct mail pieces are examined in terms of their relative effectiveness in mobilizing Asian American voters.

Partisan phone calls and mail, administered in different combinations. Neither the phone calls nor the mail used independently or together resulted in significant treatment effects.

Partisan phone calls and door-to-door canvassing carried out by a grassroots political network do not result in significant mobilization effects. Higher contact rates could improve estimates.

Door-to-door canvassing can be effective in the two weeks prior to Election Day, whereas earlier canvassing efforts are not found to be as effective. Multiple visits may not increase effectiveness of campaigns. Candidate-centered messages are more effective than partisan-centered messages.

Personally delivered phone calls and door-to-door canvassing messages are effective in mobilizing turnout. Phone calls may be as effective as canvassing.

Partisan GOTV campaign tactics are estimated to produce mobilization effects similar to results reported in nonpartisan experiments. Partisan door hangers may be more effective than nonpartisan doorhangers in mobilizing voters.

Door-to-door canvassing is found to be an effective means of mobilizing Latino voters in a variety of electoral contexts.