6684.2	Assessment
Research Question (Clear, unambiguous)	"How does immigration impact trade in goods and services among the U.S. and their import/export partners?"  This question is fine, as far as it goes.  Migrations patterns are complex and varied: consider temporary vs. permanent; educated and affluent vs. uneducated, working class (as with refugees), or those following historic patterns vs. those displaying a new type.  And immigrants can come from highly varied economies.  All of which suggests the question should be much more nuanced.
Relevant Literature	The works discussed are certainly relevant.  However, a literature review for this will have to range more widely, to get a hold on the relevant work more generally on migration and trade.
Causal Interpretations (clear, all parts defined, mechanisms, controls, plausible)	Simply stating that a rise or fall in immigration might influence a rise or fall in trade covers the simple logical possibilities, but gives us no idea about what might be the relevant causal processes.  It also ignores the obvious reverse possibilities - that international trading influences immigration.
Data (variables, sample, comparison)	The two sources of data on immigration and trade are in the right areas, but the critical question would concern how you can use them together.
Research Value	It seems unlikely that the influence of immigration on trade is great enough that trade goals would inform immigration policy, except in the face of political consequences which are not part of this research.  The results might be interesting just because they give us added insights into what influences trade.  All this depends on what new findings could emerge beyond what people already know.
Overall	This is an interesting potential area of research, but it might prove too tricky to be worth the effort.