{"part":"task","text":"# Datasets\nPass a dataset's id as the `dataset` argument.\n{\n \"id\": \"ds_0071\",\n \"rows\": 6533,\n \"description\": \"| Variable Name | Description                                                                                                    |\\n|---------------|----------------------------------------------------------------------------------------------------------------|\\n| dv_money      | Democratic Party\u2019s share of all campaign contributions received in the subsequent election cycle for a district (percent of combined Democratic and Republican receipts, t+1). |\\n| rv            | Democratic two-party vote-share margin in the prior general election for the same district (Democratic share minus 50, in percentage points; negative values indicate a Democratic loss). |\\n\\nData Description: \\nThis file is a pared-down analysis dataset derived from a larger compilation used to study fundraising patterns in U.S. House elections. Each row corresponds to a congressional district\u2013election pair, combining prior election returns with fundraising in the next cycle. The contributions measure aggregates itemized receipts reported to the Federal Election Commission (FEC) by House candidates, summing donations from individuals and political action committees; party committee transfers and candidate self-financing are excluded, and the Democratic share is computed relative to the combined Democratic and Republican totals in that district-cycle. Election returns provide the two-party vote shares from the preceding general election, recorded as the Democratic margin over 50 percent.\\n\\nThe broader study covers U.S. House contests primarily from 1980\u20132006 and focuses on districts with standard two-party competition. Observations in which a third-party candidate placed first or second are removed, and district-years affected by redistricting between elections are omitted to maintain comparability across cycles. Values are recorded in percentage points, with the contribution share referring to the subsequent cycle and the vote-share margin referring to the prior contest.\",\n \"columns\": {\n  \"dv_money\": \"float64\",\n  \"rv\": \"float64\"\n }\n}\n{\n \"id\": \"ref_rd\",\n \"rows\": 4326,\n \"description\": \"Rows with dv_money and rv both present\",\n \"columns\": {\n  \"dv_money\": \"float64\",\n  \"rv\": \"float64\"\n }\n}"}