How did washington become part of the transcontinental system?

In 1901 two railroad companies agreed to build a new station together in Washington. The project had many setbacks but some years later the first train to arrive with passengers was the Pittsburgh Express on October 27, 1907. The transcontinental system is a railway system that unites the east and west coast of the USA.

whose power in the senate is equal to the power of the speaker of the house?

the answer is a new goverment.