Final answer:
Political cartoons express opposition to various political issues such as the Embargo Act, labor movements, and certain political figures. Determining opposition to American expansion requires analysis of a particular cartoon's imagery and theme, which is not provided here.
Step-by-step explanation:
The artist of the political cartoon was most likely opposed to a number of political issues, as evidenced by the various figures and themes presented in the different cartoons. For instance, Figure 8.1 portrays opposition to Thomas Jefferson's 1807 Embargo Act, which negatively impacted American commerce. Similarly, Figure 23.21 reflects fears that labor strikes could lead to Bolshevik revolutions, indicating an opposition to labor movements and potential socialist tendencies. The cartoon in Figure 1.4.32 reveals an opposition to organized labor by depicting a workingman prioritizing union dues over his family's welfare. In Figures 17.4.4 and 17.8, Thomas Nast's attack on Horace Greeley, the Liberal Republican and Democratic nominee, suggests an opposition to his political stance and affiliation. However, determining whether a particular cartoon is in favor of or opposed to American expansion would require a specific image depicting that theme, which is not explicitly provided in the given figures.