In favorability Trump v Ryan, Fox News national poll found Trump favored by wide margins over Ryan among Republicans, Very Conservative, Somewhat Conservative, and White Evangelicals. Paul Ryan was preferred by two groups: Democrats and Liberals-May 14-17, 2016, 1026 registered voters

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Added: Rasmussen national poll May 9-10, 2016 found similar results Trump v Ryan as Fox News poll: Conservative voters favor Trump, Democrats favor Ryan: Democrats and unaffiliated voters "tend to believe the GOP should be more like Ryan." "Conservative voters say the Republican Party should be more like Trump." Congress is viewed very negatively by GOP voters: "Seventy-six percent (76%) of GOP voters think Republicans in Congress have lost touch with the party’s base." And: "Only 20% of Republicans think the GOP-led Congress’ record will help their nominee."
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May 18, 2016, "Fox News Poll: 2016 national release May 18"

May 14-17, 2016, national poll of 1021 registered voters:

page 13, "Please tell me whether you have a favorable or unfavorable view of...Donald Trump and Paul Ryan." Asked of Democrats, Republicans, Independents, Liberals, Very Conservative, Somewhat Conservative, and White Evangelicals:

Favorability among:
 
Democrats

Donald Trump 9
Paul Ryan 20

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Republicans

Donald Trump 72
Paul Ryan 51

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Independents

Donald Trump 40
Paul Ryan 39

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Liberals

Donald Trump 11
Paul Ryan 24

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Very Conservative

Donald Trump 70
Paul Ryan 51

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Somewhat Conservative

Donald Trump 56
Paul Ryan 42

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White Evangelical

Donald Trump 58
Paul Ryan 49

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Also page 13: Of note, some had "never heard of" Paul Ryan, including:

22% of Democrats, 
13% of Republicans, 
11% of Independents, 
28% of people under age 35, and
12% of people earning $50,000+

Conversely, no one in any of these groups said they'd "never heard of" Donald Trump. 

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"Methodology"

"The poll was conducted by telephone with live interviewers May 14-17, 2016, among a random national sample of 1,021 registered voters (RV).  Results based on the full sample have a margin of sampling error of plus or minus three percentage points. Additional interviews were conducted among 886 randomly selected Latinos. These interviews were done to allow analysis of the subgroup, and are weighted so Latinos are not overrepresented in the overall national sample. The total Latino sample is made up of 76 interviews conducted as part of the base national sample and 810 additional interviews from a Latino voter list developed from previously conducted national random digit dial surveys. 

Oversample interviews were conducted by bi-lingual interviewers. Results based on the Latino oversample have a margin of sampling error of plus or minus 3.5 percentage points. Landline (508) and cellphone (513) telephone numbers were randomly selected for inclusion in the survey using a probability proportionate to size method, which means phone numbers for each state are proportional to the number of voters in each state. The base sample included 513 cellphone interviews and the Latino oversample included 498.  Fieldwork conducted by Braun Research, Inc. of Princeton, NJ. Results are of registered voters, unless otherwise noted."




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