Before the congressional midterm elections to be held in the USA tomorrow, US President Joe Biden and his predecessor Donald Trump held rallies. Former President Trump, at his rally in Miami, accused Democrats of dragging the country into "communism".President Biden, at his New York rally, described the midterm elections as a "turning point" that will determine the course of the next 20 years in the United States.Biden said Americans will choose between two very different visions at the ballot box tomorrow.Former President Trump, at his rally in Miami, accused Democrats of dragging the country into "communism"."The Democrats want to turn the country into communist Cuba or socialist Venezuela," Trump said. Stating that he may run for president again in 2024, Trump gave his supporters a "Stay tuned" message for the rally he will hold in Ohio today.TEN MILLIONS VOTES BY MAILNearly 40 million voters have already cast their ballots for tomorrow's midterm elections. Recent opinion polls show that Democrats will lose a majority in the House of Representatives, while the race in the Senate is close to head.The fact that Democrats, who have a majority in both the House and Senate, have lost a majority in at least one house of Congress means that President Biden can no longer pass the bills he wants.The results of the Senate election, especially in Pennsylvania, Georgia and Nevada, will be decisive.The Republican Party's Senate candidate from Pennsylvania is Mehmet Öz, a famous doctor and television programmer.Americans are represented in government by 535 members of Congress.435 of the House of Representatives; The Senate has 100 members.Democrats have 222 seats and Republicans 212 seats in the House of Representatives. One of the Republican members, Don Young, died in March.In the Senate, Democrats have 48 seats and Republicans 50, but 2 independent members support the Democrats in the voting, and in case of equality, the Democrats also have a majority in the Senate, since the vote of Vice President Kamala Harris is decisive.Critical day in US politics tomorrow: The importance of midterm elections in 5 topics