He became, however, chairman of the Committee on Ways and Means, and was instrumental in the enactment of the Morrill Tariff Act of 1860.
He thus became associated with the enactment of all the great fiscal laws through which the strain of war and of reconstruction was sustained.
During this period he was largely concerned in the enactment of the Anti-Trust Law of 1890, and of the so-called Sherman Act of the same year, providing for the purchase of silver and the issuing of Treasury notes based upon it.
In 1539 Alesius was compelled to flee for the second time to Germany, in consequence of the enactment of the statute of the Six Articles.
Availing himself of the favourable moment, he obtained the enactment of the fundamental law of the 17th of December 1819, by which the republics of Venezuela and New Granada were henceforth to be united in a single state, under his presidency, by the title of the Republic of Colombia.