His detractors claimed that he became despotic and forced his way into a second term. Throughout his campaign leading to the 1924 general election, Machado stated numerous times that he did not aspire to be reelected, but only two years into his presidency he changed his mind. In 1927 Machado pushed a series of constitutional amendments in order to enable him to seek re-election, which he obtained in the 1928 presidential election. This act of continuismo, coupled with growing economic depression caused by a decline in sugar prices starting in 1925, its aggravation due to the crash of 1929, and political repression, led to significant political instability. Machado also faced backlash from university students after the formation of the Directorio Estudiantil Universitario in 1927. After various protests, and the death of the DEU members, most notably of Rafael Trejo, Machado closed the University in 1930.