The Government helped to build the Transcontinental Railroad by passing legislation to finance it. The Pacific Railway Act authorized the construction of the railroad across the country.
The government gave land grants to the railroad companies so they could build the tracks and also sell them to finance the construction. Public lands were divided into one-mile-square sections. Between 1850 and 1870 7% of the land in the US was given to 80 railroads companies.
President George W. Bush's main concerns about the security of the United States relied on terrorism. This led his to advocate for the creation of defense systems around the globe.
I feel that is a useful tool to the president, yes, at Thanksgiving every year at the White House, President Richard Nixon pardoned himself for the water gate scandal.