This paper aims to examine the change and stability of public support amongst electoral campaigns. Using the data collected by various polling before election day, I sort out the signal from estimated noise to specify the pattern of mass alignment in presidential election. Applying the Green's (Green et al. 1999) Samplemiser, I uncovered the reduction of estimated error across the polling data and contended that using Samplemiser is an appropriate way to re-estimate the mass attitude, and to predict the electoral result before election day.