Answer:
It is an example of persuasion.
Explanation:
Persuasion is the act of convincing or influencing others to change their beliefs, or to perform an action. To be effective at persuasion, the speaker cites tangible reasons (or benefits to be derived) that are good enough to convince his audience. An argument is a discussion that cites different point of views of a matter and presents logical reasons why the speaker's part should be followed. It has a tense tone. President Obama employed persuasion in the speech above. This can be seen in these lines;
1. "To attract new businesses to our shores, we need the fastest, most reliable ways to move people, goods, and information—from high-speed rail to high-speed Internet.": Here, he gives a reason for employing the fastest and most reliable network of people, goods and information. That reason is for them to attract new businesses.
2. "And tonight, I'm proposing that we redouble those efforts. We'll put more Americans to work repairing crumbling roads and bridges.": He makes a suggestion on ways to achieve their goals in a calm tone. He does not coerce or force the people to accept his views rather he appeals to them.